20211222122200 has 96 divisors (see below), whose sum is σ = 48777639370560. Its totient is φ = 7782765465600.

The previous prime is 20211222122159. The next prime is 20211222122227. The reversal of 20211222122200 is 222122211202.

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, 17050617 + ... + 18197416.

It is an arithmetic number, because the mean of its divisors is an integer number (508100410110).

Almost surely, 2^{20211222122200} is an apocalyptic number.

20211222122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211222122200 is an abundant number, since it is smaller than the sum of its proper divisors (28566417248360).

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

20211222122200 is a wasteful number, since it uses less digits than its factorization.

20211222122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35248157 (or 35248148 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20211222122200 its reverse (222122211202), we get a palindrome (20433344333402).

The spelling of 20211222122200 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred".