111312100021012 has 48 divisors (see below), whose sum is σ = 218204820288000. Its totient is φ = 49255941339360.

The previous prime is 111312100020983. The next prime is 111312100021027. The reversal of 111312100021012 is 210120001213111.

It is a happy number.

It is a super-2 number, since 2×111312100021012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 207879762 + ... + 208414537.

It is an arithmetic number, because the mean of its divisors is an integer number (4545933756000).

Almost surely, 2^{111312100021012} is an apocalyptic number.

It is an amenable number.

111312100021012 is a deficient number, since it is larger than the sum of its proper divisors (106892720266988).

111312100021012 is a wasteful number, since it uses less digits than its factorization.

111312100021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416294476 (or 416294474 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111312100021012 its reverse (210120001213111), we get a palindrome (321432101234123).

The spelling of 111312100021012 in words is "one hundred eleven trillion, three hundred twelve billion, one hundred million, twenty-one thousand, twelve".