20212012222200 has 144 divisors (see below), whose sum is σ = 69713233376280. Its totient is φ = 5244197748480.

The previous prime is 20212012222189. The next prime is 20212012222211. The reversal of 20212012222200 is 222221021202.

20212012222200 is a `hidden beast` number, since 2 + 0 + 21 + 201 + 222 + 220 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20212012222189) and next prime (20212012222211).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 151675234 + ... + 151808433.

Almost surely, 2^{20212012222200} is an apocalyptic number.

20212012222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212012222200 is an abundant number, since it is smaller than the sum of its proper divisors (49501221154080).

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

20212012222200 is a wasteful number, since it uses less digits than its factorization.

20212012222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303483726 (or 303483714 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20212012222200 its reverse (222221021202), we get a palindrome (20434233243402).

The spelling of 20212012222200 in words is "twenty trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, two hundred".