202010011021 has 48 divisors (see below), whose sum is σ = 258845155200. Its totient is φ = 154182921984.

The previous prime is 202010011009. The next prime is 202010011031. The reversal of 202010011021 is 120110010202.

It is not a de Polignac number, because 202010011021 - 2⁷ = 202010010893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202010010989 and 202010011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202010011031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55541215 + ... + 55544851.

It is an arithmetic number, because the mean of its divisors is an integer number (5392607400).

Almost surely, 2^202010011021 is an apocalyptic number.

It is an amenable number.

202010011021 is a deficient number, since it is larger than the sum of its proper divisors (56835144179).

202010011021 is a wasteful number, since it uses less digits than its factorization.

202010011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318 (or 5305 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 202010011021 its reverse (120110010202), we get a palindrome (322120021223).

The spelling of 202010011021 in words is "two hundred two billion, ten million, eleven thousand, twenty-one".