112121111221012 has 6 divisors (see below), whose sum is σ = 196211944636778. Its totient is φ = 56060555610504.

The previous prime is 112121111220949. The next prime is 112121111221039. The reversal of 112121111221012 is 210122111121211.

It can be written as a sum of positive squares in only one way, i.e., 70086298523536 + 42034812697476 = 8371756^2 + 6483426^2 .

It is a super-2 number, since 2×112121111221012² (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 as a sum of consecutive naturals, namely, 14015138902623 + ... + 14015138902630.

Almost surely, 2^{112121111221012} is an apocalyptic number.

It is an amenable number.

112121111221012 is a deficient number, since it is larger than the sum of its proper divisors (84090833415766).

112121111221012 is a wasteful number, since it uses less digits than its factorization.

112121111221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28030277805257 (or 28030277805255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 112121111221012 its reverse (210122111121211), we get a palindrome (322243222342223).

The spelling of 112121111221012 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twenty-one thousand, twelve".