202120202021202 has 48 divisors (see below), whose sum is σ = 463691730523320. Its totient is φ = 63409683972096.

The previous prime is 202120202021183. The next prime is 202120202021237.

202120202021202 is a `hidden beast` number, since 202 + 120 + 20 + 202 + 120 + 2 = 666.

202120202021202 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 187566747641001 + 14553454380201 = 13695501^2 + 3814899^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31419258 + ... + 37301610.

Almost surely, 2^{202120202021202} is an apocalyptic number.

202120202021202 is an abundant number, since it is smaller than the sum of its proper divisors (261571528502118).

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

202120202021202 is a wasteful number, since it uses less digits than its factorization.

202120202021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994667 (or 5994664 counting only the distinct ones).

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

It can be divided in two parts, 20212020 and 2021202, that added together give a palindrome (22233222).

The spelling of 202120202021202 in words is "two hundred two trillion, one hundred twenty billion, two hundred two million, twenty-one thousand, two hundred two".