222021222221210 has 64 divisors (see below), whose sum is σ = 411340585582080. Its totient is φ = 86251308848640.

The previous prime is 222021222221207. The next prime is 222021222221231. The reversal of 222021222221210 is 12122222120222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16350245 + ... + 26671575.

It is an arithmetic number, because the mean of its divisors is an integer number (6427196649720).

Almost surely, 2^{222021222221210} is an apocalyptic number.

222021222221210 is a deficient number, since it is larger than the sum of its proper divisors (189319363360870).

222021222221210 is a wasteful number, since it uses less digits than its factorization.

222021222221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10321863.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222021222221210 its reverse (12122222120222), we get a palindrome (234143444341432).

The spelling of 222021222221210 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred ten".