22121224021210 has 64 divisors (see below), whose sum is σ = 40840618867200. Its totient is φ = 8624173465600.

The previous prime is 22121224021199. The next prime is 22121224021213. The reversal of 22121224021210 is 1212042212122.

It is not an unprimeable number, because it can be changed into a prime (22121224021213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356297370 + ... + 356359450.

It is an arithmetic number, because the mean of its divisors is an integer number (638134669800).

Almost surely, 2^{22121224021210} is an apocalyptic number.

22121224021210 is a deficient number, since it is larger than the sum of its proper divisors (18719394845990).

22121224021210 is a wasteful number, since it uses less digits than its factorization.

22121224021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67887.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22121224021210 its reverse (1212042212122), we get a palindrome (23333266233332).

The spelling of 22121224021210 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred twenty-four million, twenty-one thousand, two hundred ten".