222100122220 has 96 divisors (see below), whose sum is σ = 474428344320. Its totient is φ = 87329249280.

The previous prime is 222100122217. The next prime is 222100122229. The reversal of 222100122220 is 22221001222.

It is a junction number, because it is equal to n+sod(n) for n = 222100122194 and 222100122203.

It is not an unprimeable number, because it can be changed into a prime (222100122229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207763846 + ... + 207764914.

It is an arithmetic number, because the mean of its divisors is an integer number (4941961920).

Almost surely, 2^222100122220 is an apocalyptic number.

222100122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222100122220 is an abundant number, since it is smaller than the sum of its proper divisors (252328222100).

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

222100122220 is a wasteful number, since it uses less digits than its factorization.

222100122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222100122220 its reverse (22221001222), we get a palindrome (244321123442).

The spelling of 222100122220 in words is "two hundred twenty-two billion, one hundred million, one hundred twenty-two thousand, two hundred twenty".