222021202210 has 16 divisors (see below), whose sum is σ = 399721629816. Its totient is φ = 88789932928.

The previous prime is 222021202187. The next prime is 222021202213. The reversal of 222021202210 is 12202120222.

It can be written as a sum of positive squares in 4 ways, for example, as 178414156881 + 43607045329 = 422391^2 + 208823^2 .

It is not an unprimeable number, because it can be changed into a prime (222021202213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268169 + ... + 2364028.

Almost surely, 2^222021202210 is an apocalyptic number.

222021202210 is a deficient number, since it is larger than the sum of its proper divisors (177700427606).

222021202210 is a wasteful number, since it uses less digits than its factorization.

222021202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4636997.

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

Adding to 222021202210 its reverse (12202120222), we get a palindrome (234223322432).

The spelling of 222021202210 in words is "two hundred twenty-two billion, twenty-one million, two hundred two thousand, two hundred ten".