200021220112212 has 36 divisors (see below), whose sum is σ = 505949215052736. Its totient is φ = 66628902265680.

The previous prime is 200021220112157. The next prime is 200021220112237. The reversal of 200021220112212 is 212211022120002.

It is a happy number.

200021220112212 is a `hidden beast` number, since 200 + 0 + 21 + 220 + 1 + 1 + 221 + 2 = 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1868186214 + ... + 1868293277.

It is an arithmetic number, because the mean of its divisors is an integer number (14054144862576).

Almost surely, 2^{200021220112212} is an apocalyptic number.

It is an amenable number.

200021220112212 is an abundant number, since it is smaller than the sum of its proper divisors (305927994940524).

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

200021220112212 is a wasteful number, since it uses less digits than its factorization.

200021220112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736480988 (or 3736480983 counting only the distinct ones).

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

Adding to 200021220112212 its reverse (212211022120002), we get a palindrome (412232242232214).

The spelling of 200021220112212 in words is "two hundred trillion, twenty-one billion, two hundred twenty million, one hundred twelve thousand, two hundred twelve".