22012200121210 has 192 divisors, whose sum is σ = 45294636022272. Its totient is φ = 7652711227392.

The previous prime is 22012200121187. The next prime is 22012200121213. The reversal of 22012200121210 is 1212100221022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22012200121213) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1454190762 + ... + 1454205898.

It is an arithmetic number, because the mean of its divisors is an integer number (235909562616).

Almost surely, 2^{22012200121210} is an apocalyptic number.

22012200121210 is an abundant number, since it is smaller than the sum of its proper divisors (23282435901062).

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

22012200121210 is a wasteful number, since it uses less digits than its factorization.

22012200121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15545 (or 15516 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22012200121210 its reverse (1212100221022), we get a palindrome (23224300342232).

The spelling of 22012200121210 in words is "twenty-two trillion, twelve billion, two hundred million, one hundred twenty-one thousand, two hundred ten".