22221012200120 has 64 divisors (see below), whose sum is σ = 51218502098400. Its totient is φ = 8671313336320.

The previous prime is 22221012200117. The next prime is 22221012200171. The reversal of 22221012200120 is 2100221012222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50306867 + ... + 50746653.

Almost surely, 2^{22221012200120} is an apocalyptic number.

22221012200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221012200120 is an abundant number, since it is smaller than the sum of its proper divisors (28997489898280).

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

22221012200120 is a wasteful number, since it uses less digits than its factorization.

22221012200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470648 (or 470644 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22221012200120 its reverse (2100221012222), we get a palindrome (24321233212342).

The spelling of 22221012200120 in words is "twenty-two trillion, two hundred twenty-one billion, twelve million, two hundred thousand, one hundred twenty".