22221021211120 has 40 divisors (see below), whose sum is σ = 51664316571216. Its totient is φ = 8888332397568.

The previous prime is 22221021211093. The next prime is 22221021211127. The reversal of 22221021211120 is 2111212012222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×22221021211120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221021211127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8728984 + ... + 10983496.

Almost surely, 2^{22221021211120} is an apocalyptic number.

22221021211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221021211120 is an abundant number, since it is smaller than the sum of its proper divisors (29443295360096).

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

22221021211120 is a wasteful number, since it uses less digits than its factorization.

22221021211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377729 (or 2377723 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22221021211120 its reverse (2111212012222), we get a palindrome (24332233223342).

The spelling of 22221021211120 in words is "twenty-two trillion, two hundred twenty-one billion, twenty-one million, two hundred eleven thousand, one hundred twenty".