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2013220112112 = 243311423657431
BaseRepresentation
bin11101010010111101010…
…001010000011011110000
321010110110202211010111000
4131102331101100123300
5230441033322041422
64140505513522000
7265310320413666
oct35227521203360
97113422733430
102013220112112
117068902a5780
12286213413300
13117acc412811
146d624554c36
153757d90ccac
hex1d4bd4506f0

2013220112112 has 80 divisors (see below), whose sum is σ = 6304022588160. Its totient is φ = 610066699200.

The previous prime is 2013220112089. The next prime is 2013220112117. The reversal of 2013220112112 is 2112110223102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013220112117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211823964 + ... + 211833467.

It is an arithmetic number, because the mean of its divisors is an integer number (78800282352).

Almost surely, 22013220112112 is an apocalyptic number.

2013220112112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2013220112112 is an abundant number, since it is smaller than the sum of its proper divisors (4290802476048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2013220112112 is a wasteful number, since it uses less digits than its factorization.

2013220112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423657459 (or 423657447 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2013220112112 its reverse (2112110223102), we get a palindrome (4125330335214).

The spelling of 2013220112112 in words is "two trillion, thirteen billion, two hundred twenty million, one hundred twelve thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 88 99 108 132 144 176 198 216 264 297 396 432 528 594 792 1188 1584 2376 4752 423657431 847314862 1270972293 1694629724 2541944586 3389259448 3812916879 4660231741 5083889172 6778518896 7625833758 9320463482 10167778344 11438750637 13980695223 15251667516 18640926964 20335556688 22877501274 27961390446 30503335032 37281853928 41942085669 45755002548 55922780892 61006670064 74563707856 83884171338 91510005096 111845561784 125826257007 167768342676 183020010192 223691123568 251652514014 335536685352 503305028028 671073370704 1006610056056 2013220112112