111020222331 has 12 divisors (see below), whose sum is σ = 160388205120. Its totient is φ = 74001637680.

The previous prime is 111020222329. The next prime is 111020222429. The reversal of 111020222331 is 133222020111.

111020222331 is a `hidden beast` number, since 1 + 110 + 2 + 0 + 222 + 331 = 666.

It is not a de Polignac number, because 111020222331 - 2¹ = 111020222329 is a prime.

It is a super-2 number, since 2×111020222331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111020222311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927435 + ... + 1040276.

It is an arithmetic number, because the mean of its divisors is an integer number (13365683760).

Almost surely, 2^111020222331 is an apocalyptic number.

111020222331 is a deficient number, since it is larger than the sum of its proper divisors (49367982789).

111020222331 is a wasteful number, since it uses less digits than its factorization.

111020222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973986 (or 1973983 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111020222331 its reverse (133222020111), we get a palindrome (244242242442).

The spelling of 111020222331 in words is "one hundred eleven billion, twenty million, two hundred twenty-two thousand, three hundred thirty-one".