21222092210 has 16 divisors (see below), whose sum is σ = 41672472192. Its totient is φ = 7717124400.

The previous prime is 21222092209. The next prime is 21222092347. The reversal of 21222092210 is 1229022212.

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, 96463946 + ... + 96464165.

It is an arithmetic number, because the mean of its divisors is an integer number (2604529512).

Almost surely, 2^21222092210 is an apocalyptic number.

21222092210 is a deficient number, since it is larger than the sum of its proper divisors (20450379982).

21222092210 is a wasteful number, since it uses less digits than its factorization.

21222092210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192928129.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 21222092210 in words is "twenty-one billion, two hundred twenty-two million, ninety-two thousand, two hundred ten".