222111120122220 has 96 divisors (see below), whose sum is σ = 710764671859200. Its totient is φ = 50767606923264.

The previous prime is 222111120122173. The next prime is 222111120122237. The reversal of 222111120122220 is 22221021111222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29897196 + ... + 36579564.

It is an arithmetic number, because the mean of its divisors is an integer number (7403798665200).

Almost surely, 2^{222111120122220} is an apocalyptic number.

222111120122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222111120122220 is an abundant number, since it is smaller than the sum of its proper divisors (488653551736980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222111120122220 is a wasteful number, since it uses less digits than its factorization.

222111120122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6761527 (or 6761525 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222111120122220 its reverse (22221021111222), we get a palindrome (244332141233442).

The spelling of 222111120122220 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty".