222202221220210 has 64 divisors (see below), whose sum is σ = 498658369893120. Its totient is φ = 69257563441920.

The previous prime is 222202221220201. The next prime is 222202221220241. The reversal of 222202221220210 is 12022122202222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297954076 + ... + 298698904.

It is an arithmetic number, because the mean of its divisors is an integer number (7791537029580).

Almost surely, 2^{222202221220210} is an apocalyptic number.

222202221220210 is an abundant number, since it is smaller than the sum of its proper divisors (276456148672910).

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

222202221220210 is a wasteful number, since it uses less digits than its factorization.

222202221220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132291.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222202221220210 its reverse (12022122202222), we get a palindrome (234224343422432).

The spelling of 222202221220210 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred ten".