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111012120212 = 22750924413191
BaseRepresentation
bin110011101100011010…
…1101000011010010100
3101121112121220000021212
41213120311220122110
53304323100321322
6122555343000552
711006661311150
oct1473065503224
9347477800255
10111012120212
11430974a1aa4
1219621899158
13a6120bb9c6
1455317a8060
152d4adc00e2
hex19d8d68694

111012120212 has 48 divisors (see below), whose sum is σ = 222621315840. Its totient is φ = 47448825600.

The previous prime is 111012120187. The next prime is 111012120217. The reversal of 111012120212 is 212021210111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012120217) 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, 34787537 + ... + 34790727.

It is an arithmetic number, because the mean of its divisors is an integer number (4637944080).

Almost surely, 2111012120212 is an apocalyptic number.

It is an amenable number.

111012120212 is an abundant number, since it is smaller than the sum of its proper divisors (111609195628).

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

111012120212 is a wasteful number, since it uses less digits than its factorization.

111012120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152 (or 6150 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111012120212 its reverse (212021210111), we get a palindrome (323033330323).

The spelling of 111012120212 in words is "one hundred eleven billion, twelve million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 509 1018 2036 2441 3191 3563 4882 6382 7126 9764 12764 14252 17087 22337 34174 44674 68348 89348 1242469 1624219 2484938 3248438 4969876 6496876 7789231 8697283 11369533 15578462 17394566 22739066 31156924 34789132 45478132 54524617 109049234 218098468 3964718579 7929437158 15858874316 27753030053 55506060106 111012120212