202202200120212 has 18 divisors (see below), whose sum is σ = 511122228081738. Its totient is φ = 67400733373392.

The previous prime is 202202200120199. The next prime is 202202200120213. The reversal of 202202200120212 is 212021002202202.

202202200120212 is a `hidden beast` number, since 2 + 0 + 220 + 220 + 0 + 12 + 0 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 201292931075076 + 909269045136 = 14187774^2 + 953556^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202202200120213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2808363890523 + ... + 2808363890594.

Almost surely, 2^{202202200120212} is an apocalyptic number.

It is an amenable number.

202202200120212 is an abundant number, since it is smaller than the sum of its proper divisors (308920027961526).

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

202202200120212 is a wasteful number, since it uses less digits than its factorization.

202202200120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616727781127 (or 5616727781122 counting only the distinct ones).

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

Adding to 202202200120212 its reverse (212021002202202), we get a palindrome (414223202322414).

The spelling of 202202200120212 in words is "two hundred two trillion, two hundred two billion, two hundred million, one hundred twenty thousand, two hundred twelve".