21232211211210 has 32 divisors (see below), whose sum is σ = 53639270429760. Its totient is φ = 5363927042688.

The previous prime is 21232211211209. The next prime is 21232211211227. The reversal of 21232211211210 is 1211211223212.

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, 18624746107 + ... + 18624747246.

It is an arithmetic number, because the mean of its divisors is an integer number (1676227200930).

Almost surely, 2^{21232211211210} is an apocalyptic number.

21232211211210 is an abundant number, since it is smaller than the sum of its proper divisors (32407059218550).

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

21232211211210 is a wasteful number, since it uses less digits than its factorization.

21232211211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37249493382.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 21232211211210 its reverse (1211211223212), we get a palindrome (22443422434422).

The spelling of 21232211211210 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred eleven million, two hundred eleven thousand, two hundred ten".