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12020012220112 = 241371471808559
BaseRepresentation
bin1010111011101010000010…
…0011101111111011010000
31120120002202022121012212221
42232322200203233323100
53033413441112020422
641321530053230424
72350263052043401
oct256724043577320
946502668535787
1012020012220112
11391472759aa96
121421685932414
13692636785750
142d7ab37659a8
1515ca04ca23c7
hexaeea08efed0

12020012220112 has 40 divisors (see below), whose sum is σ = 25080599738880. Its totient is φ = 5547613464960.

The previous prime is 12020012220107. The next prime is 12020012220131. The reversal of 12020012220112 is 21102221002021.

It is a happy number.

It is a super-3 number, since 3×120200122201123 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14461689 + ... + 15270247.

It is an arithmetic number, because the mean of its divisors is an integer number (627014993472).

Almost surely, 212020012220112 is an apocalyptic number.

It is an amenable number.

12020012220112 is an abundant number, since it is smaller than the sum of its proper divisors (13060587518768).

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

12020012220112 is a wasteful number, since it uses less digits than its factorization.

12020012220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880051 (or 880045 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12020012220112 its reverse (21102221002021), we get a palindrome (33122233222133).

The spelling of 12020012220112 in words is "twelve trillion, twenty billion, twelve million, two hundred twenty thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 71471 142942 285884 571768 808559 929123 1143536 1617118 1858246 3234236 3716492 6468472 7432984 10511267 12936944 14865968 21022534 42045068 84090136 168180272 57788520289 115577040578 231154081156 462308162312 751250763757 924616324624 1502501527514 3005003055028 6010006110056 12020012220112