202102111220202 has 80 divisors (see below), whose sum is σ = 470434388371200. Its totient is φ = 64772205150240.

The previous prime is 202102111220101. The next prime is 202102111220237. The reversal of 202102111220202 is 202022111201202.

It is a happy number.

202102111220202 is a `hidden beast` number, since 2 + 0 + 210 + 21 + 11 + 220 + 202 = 666.

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 39 ways as a sum of consecutive naturals, for example, 88874574 + ... + 91120217.

It is an arithmetic number, because the mean of its divisors is an integer number (5880429854640).

Almost surely, 2^{202102111220202} is an apocalyptic number.

202102111220202 is an abundant number, since it is smaller than the sum of its proper divisors (268332277150998).

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

202102111220202 is a wasteful number, since it uses less digits than its factorization.

202102111220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179995073 (or 179995064 counting only the distinct ones).

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

Adding to 202102111220202 its reverse (202022111201202), we get a palindrome (404124222421404).

The spelling of 202102111220202 in words is "two hundred two trillion, one hundred two billion, one hundred eleven million, two hundred twenty thousand, two hundred two".