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2011112211210 = 235174738372681
BaseRepresentation
bin11101010000111111101…
…000010000001100001010
321010021000212102200001020
4131100333220100030022
5230422224211224320
64135520414133310
7265204143512214
oct35207750201412
97107025380036
102011112211210
117059a9460613
122859254b1236
131178547b968b
146d4a460d5b4
15374a8834940
hex1d43fa1030a

2011112211210 has 32 divisors (see below), whose sum is σ = 4829432265792. Its totient is φ = 535989594240.

The previous prime is 2011112211187. The next prime is 2011112211341. The reversal of 2011112211210 is 121122111102.

It is a happy number.

It is a super-3 number, since 3×20111122112103 (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2011112211210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19133931 + ... + 19238750.

It is an arithmetic number, because the mean of its divisors is an integer number (150919758306).

Almost surely, 22011112211210 is an apocalyptic number.

2011112211210 is an abundant number, since it is smaller than the sum of its proper divisors (2818320054582).

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

2011112211210 is a wasteful number, since it uses less digits than its factorization.

2011112211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38374438.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2011112211210 its reverse (121122111102), we get a palindrome (2132234322312).

The spelling of 2011112211210 in words is "two trillion, eleven billion, one hundred twelve million, two hundred eleven thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1747 3494 5241 8735 10482 17470 26205 52410 38372681 76745362 115118043 191863405 230236086 383726810 575590215 1151180430 67037073707 134074147414 201111221121 335185368535 402222442242 670370737070 1005556105605 2011112211210