210202202000021 has 32 divisors (see below), whose sum is σ = 263210494464000. Its totient is φ = 163081515804480.

The previous prime is 210202202000009. The next prime is 210202202000047. The reversal of 210202202000021 is 120000202202012.

It is a de Polignac number, because none of the positive numbers 2^k-210202202000021 is a prime.

It is a super-3 number, since 3×210202202000021³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210202202000221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110264255 + ... + 112154403.

It is an arithmetic number, because the mean of its divisors is an integer number (8225327952000).

Almost surely, 2^{210202202000021} is an apocalyptic number.

It is an amenable number.

210202202000021 is a deficient number, since it is larger than the sum of its proper divisors (53008292463979).

210202202000021 is a wasteful number, since it uses less digits than its factorization.

210202202000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896449.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 210202202000021 its reverse (120000202202012), we get a palindrome (330202404202033).

The spelling of 210202202000021 in words is "two hundred ten trillion, two hundred two billion, two hundred two million, twenty-one", and thus it is an aban number.