22221121200110 has 48 divisors (see below), whose sum is σ = 46529786041056. Its totient is φ = 7618427917632.

The previous prime is 22221121200043. The next prime is 22221121200133. The reversal of 22221121200110 is 1100212112222.

It is a congruent number.

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, 15059999 + ... + 16469541.

It is an arithmetic number, because the mean of its divisors is an integer number (969370542522).

Almost surely, 2^{22221121200110} is an apocalyptic number.

22221121200110 is an abundant number, since it is smaller than the sum of its proper divisors (24308664840946).

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

22221121200110 is a wasteful number, since it uses less digits than its factorization.

22221121200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441737 (or 1441730 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22221121200110 its reverse (1100212112222), we get a palindrome (23321333312332).

The spelling of 22221121200110 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred thousand, one hundred ten".