222220100022210 has 48 divisors (see below), whose sum is σ = 577773304837560. Its totient is φ = 59258586182400.

The previous prime is 222220100022149. The next prime is 222220100022229. The reversal of 222220100022210 is 12220001022222.

222220100022210 is a `hidden beast` number, since 222 + 220 + 1 + 0 + 0 + 0 + 2 + 221 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 204133256325441 + 18086843696769 = 14287521^2 + 4252863^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56291110 + ... + 60109310.

Almost surely, 2^{222220100022210} is an apocalyptic number.

222220100022210 is an abundant number, since it is smaller than the sum of its proper divisors (355553204815350).

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

222220100022210 is a wasteful number, since it uses less digits than its factorization.

222220100022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464883 (or 4464880 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222220100022210 its reverse (12220001022222), we get a palindrome (234440101044432).

The spelling of 222220100022210 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred million, twenty-two thousand, two hundred ten".