222021222121010 has 32 divisors (see below), whose sum is σ = 431431872767280. Its totient is φ = 81776633683968.

The previous prime is 222021222120979. The next prime is 222021222121021. The reversal of 222021222121010 is 10121222120222.

It can be written as a sum of positive squares in 8 ways, for example, as 174013271405281 + 48007950715729 = 13191409^2 + 6928777^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2087789807 + ... + 2087896146.

Almost surely, 2^{222021222121010} is an apocalyptic number.

222021222121010 is a deficient number, since it is larger than the sum of its proper divisors (209410650646270).

222021222121010 is a wasteful number, since it uses less digits than its factorization.

222021222121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175686382.

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

Adding to 222021222121010 its reverse (10121222120222), we get a palindrome (232142444241232).

The spelling of 222021222121010 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, ten".