22021212110000 has 50 divisors (see below), whose sum is σ = 53315556663732. Its totient is φ = 8808484840000.

The previous prime is 22021212109957. The next prime is 22021212110003. The reversal of 22021212110000 is 1121212022.

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×22021212110000² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22021212110003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1101050606 + ... + 1101070605.

Almost surely, 2^{22021212110000} is an apocalyptic number.

22021212110000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021212110000 is an abundant number, since it is smaller than the sum of its proper divisors (31294344553732).

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

22021212110000 is an equidigital number, since it uses as much as digits as its factorization.

22021212110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202121239 (or 2202121218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22021212110000 its reverse (1121212022), we get a palindrome (22022333322022).

The spelling of 22021212110000 in words is "twenty-two trillion, twenty-one billion, two hundred twelve million, one hundred ten thousand".