111111220020122 has 24 divisors (see below), whose sum is σ = 195357723834240. Its totient is φ = 47255589752280.

The previous prime is 111111220020089. The next prime is 111111220020193. The reversal of 111111220020122 is 221020022111111.

It is a self number, because there is not a number n which added to its sum of digits gives 111111220020122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4327422122 + ... + 4327447797.

It is an arithmetic number, because the mean of its divisors is an integer number (8139905159760).

Almost surely, 2^{111111220020122} is an apocalyptic number.

111111220020122 is a deficient number, since it is larger than the sum of its proper divisors (84246503814118).

111111220020122 is a wasteful number, since it uses less digits than its factorization.

111111220020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8654870066 (or 8654870059 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111111220020122 its reverse (221020022111111), we get a palindrome (332131242131233).

The spelling of 111111220020122 in words is "one hundred eleven trillion, one hundred eleven billion, two hundred twenty million, twenty thousand, one hundred twenty-two".