111012122331 has 48 divisors (see below), whose sum is σ = 185265100800. Its totient is φ = 63306351360.

The previous prime is 111012122329. The next prime is 111012122369. The reversal of 111012122331 is 133221210111.

It is not a de Polignac number, because 111012122331 - 2¹ = 111012122329 is a prime.

It is a super-2 number, since 2×111012122331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111012122371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10670070 + ... + 10680468.

It is an arithmetic number, because the mean of its divisors is an integer number (3859689600).

Almost surely, 2^111012122331 is an apocalyptic number.

111012122331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111012122331 is a deficient number, since it is larger than the sum of its proper divisors (74252978469).

111012122331 is a wasteful number, since it uses less digits than its factorization.

111012122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16776 (or 16773 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111012122331 its reverse (133221210111), we get a palindrome (244233332442).

The spelling of 111012122331 in words is "one hundred eleven billion, twelve million, one hundred twenty-two thousand, three hundred thirty-one".