111012212312 has 32 divisors (see below), whose sum is σ = 220407382800. Its totient is φ = 52237369344.

The previous prime is 111012212299. The next prime is 111012212369. The reversal of 111012212312 is 213212210111.

It is a happy number.

It is a super-2 number, since 2×111012212312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 3535739 + ... + 3566997.

Almost surely, 2^111012212312 is an apocalyptic number.

It is an amenable number.

111012212312 is a deficient number, since it is larger than the sum of its proper divisors (109395170488).

111012212312 is a wasteful number, since it uses less digits than its factorization.

111012212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57395 (or 57391 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111012212312 its reverse (213212210111), we get a palindrome (324224422423).

The spelling of 111012212312 in words is "one hundred eleven billion, twelve million, two hundred twelve thousand, three hundred twelve".