22222021210 has 16 divisors (see below), whose sum is σ = 40018841856. Its totient is φ = 8884541008.

The previous prime is 22222021201. The next prime is 22222021231. The reversal of 22222021210 is 1212022222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511522 + ... + 553261.

It is an arithmetic number, because the mean of its divisors is an integer number (2501177616).

Almost surely, 2^22222021210 is an apocalyptic number.

22222021210 is a deficient number, since it is larger than the sum of its proper divisors (17796820646).

22222021210 is a wasteful number, since it uses less digits than its factorization.

22222021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066877.

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

Adding to 22222021210 its reverse (1212022222), we get a palindrome (23434043432).

The spelling of 22222021210 in words is "twenty-two billion, two hundred twenty-two million, twenty-one thousand, two hundred ten".