22221332210 has 128 divisors (see below), whose sum is σ = 51149905920. Its totient is φ = 6750374400.

The previous prime is 22221332201. The next prime is 22221332317. The reversal of 22221332210 is 1223312222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4863347 + ... + 4867913.

It is an arithmetic number, because the mean of its divisors is an integer number (399608640).

Almost surely, 2^22221332210 is an apocalyptic number.

22221332210 is an abundant number, since it is smaller than the sum of its proper divisors (28928573710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22221332210 is a wasteful number, since it uses less digits than its factorization.

22221332210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22221332210 its reverse (1223312222), we get a palindrome (23444644432).

The spelling of 22221332210 in words is "twenty-two billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred ten".