202000210211021 has 8 divisors (see below), whose sum is σ = 202088192475960. Its totient is φ = 201912241251328.

The previous prime is 202000210210999. The next prime is 202000210211077. The reversal of 202000210211021 is 120112012000202.

It can be written as a sum of positive squares in 4 ways, for example, as 89725206130921 + 112275004080100 = 9472339^2 + 10595990^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202000210211021 - 2³⁰ = 201999136469197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 202000210210987 and 202000210211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000210211521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27104885 + ... + 33744261.

It is an arithmetic number, because the mean of its divisors is an integer number (25261024059495).

Almost surely, 2^{202000210211021} is an apocalyptic number.

It is an amenable number.

202000210211021 is a deficient number, since it is larger than the sum of its proper divisors (87982264939).

202000210211021 is a wasteful number, since it uses less digits than its factorization.

202000210211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652623.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202000210211021 its reverse (120112012000202), we get a palindrome (322112222211223).

The spelling of 202000210211021 in words is "two hundred two trillion, two hundred ten million, two hundred eleven thousand, twenty-one".