222202121012210 has 64 divisors (see below), whose sum is σ = 403587765303264. Its totient is φ = 88078937856000.

The previous prime is 222202121012173. The next prime is 222202121012219. The reversal of 222202121012210 is 12210121202222.

It can be written as a sum of positive squares in 16 ways, for example, as 2287961785201 + 219914159227009 = 1512601^2 + 14829503^2 .

It is not an unprimeable number, because it can be changed into a prime (222202121012219) 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, 7557623510 + ... + 7557652910.

Almost surely, 2^{222202121012210} is an apocalyptic number.

222202121012210 is a deficient number, since it is larger than the sum of its proper divisors (181385644291054).

222202121012210 is a wasteful number, since it uses less digits than its factorization.

222202121012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43679.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222202121012210 its reverse (12210121202222), we get a palindrome (234412242214432).

The spelling of 222202121012210 in words is "two hundred twenty-two trillion, two hundred two billion, one hundred twenty-one million, twelve thousand, two hundred ten".