12221202121210 has 32 divisors (see below), whose sum is σ = 22009671889920. Its totient is φ = 4885923891072.

The previous prime is 12221202121181. The next prime is 12221202121253. The reversal of 12221202121210 is 1212120212221.

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 15 ways as a sum of consecutive naturals, for example, 453850767 + ... + 453877693.

It is an arithmetic number, because the mean of its divisors is an integer number (687802246560).

Almost surely, 2^{12221202121210} is an apocalyptic number.

12221202121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221202121210 is a deficient number, since it is larger than the sum of its proper divisors (9788469768710).

12221202121210 is a wasteful number, since it uses less digits than its factorization.

12221202121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48990.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221202121210 its reverse (1212120212221), we get a palindrome (13433322333431).

The spelling of 12221202121210 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty-one thousand, two hundred ten".