22120200211212 has 36 divisors (see below), whose sum is σ = 58857842669080. Its totient is φ = 6985326382272.

The previous prime is 22120200211211. The next prime is 22120200211297. The reversal of 22120200211212 is 21211200202122.

It is a happy number.

22120200211212 is a `hidden beast` number, since 2 + 21 + 20 + 200 + 211 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22120200211211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16169736313 + ... + 16169737680.

Almost surely, 2^{22120200211212} is an apocalyptic number.

It is an amenable number.

22120200211212 is an abundant number, since it is smaller than the sum of its proper divisors (36737642457868).

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

22120200211212 is a wasteful number, since it uses less digits than its factorization.

22120200211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32339474022 (or 32339474017 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22120200211212 its reverse (21211200202122), we get a palindrome (43331400413334).

The spelling of 22120200211212 in words is "twenty-two trillion, one hundred twenty billion, two hundred million, two hundred eleven thousand, two hundred twelve".