22000121211210 has 48 divisors (see below), whose sum is σ = 56088890362656. Its totient is φ = 5521599046912.

The previous prime is 22000121211203. The next prime is 22000121211223. The reversal of 22000121211210 is 1211212100022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22000121211210.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1268741112 + ... + 1268758451.

It is an arithmetic number, because the mean of its divisors is an integer number (1168518549222).

Almost surely, 2^{22000121211210} is an apocalyptic number.

22000121211210 is an abundant number, since it is smaller than the sum of its proper divisors (34088769151446).

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

22000121211210 is a wasteful number, since it uses less digits than its factorization.

22000121211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537499607 (or 2537499590 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22000121211210 its reverse (1211212100022), we get a palindrome (23211333311232).

The spelling of 22000121211210 in words is "twenty-two trillion, one hundred twenty-one million, two hundred eleven thousand, two hundred ten".