202121000222202 has 72 divisors (see below), whose sum is σ = 468325799665308. Its totient is φ = 62782682073600.

The previous prime is 202121000222179. The next prime is 202121000222227. The reversal of 202121000222202 is 202222000121202.

202121000222202 is a `hidden beast` number, since 20 + 212 + 10 + 0 + 0 + 222 + 202 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 202116862001961 + 4138220241 = 14216781^2 + 64329^2 .

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

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, 29254053 + ... + 35497064.

Almost surely, 2^{202121000222202} is an apocalyptic number.

202121000222202 is an abundant number, since it is smaller than the sum of its proper divisors (266204799443106).

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

202121000222202 is a wasteful number, since it uses less digits than its factorization.

202121000222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64751344 (or 64751240 counting only the distinct ones).

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

Adding to 202121000222202 its reverse (202222000121202), we get a palindrome (404343000343404).

It can be divided in two parts, 202121000 and 222202, that added together give a palindrome (202343202).

The spelling of 202121000222202 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred twenty-two thousand, two hundred two".