202132010021 has 2 divisors, whose sum is σ = 202132010022. Its totient is φ = 202132010020.

The previous prime is 202132009993. The next prime is 202132010027. The reversal of 202132010021 is 120010231202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192348030625 + 9783979396 = 438575^2 + 98914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202132010021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202132009978 and 202132010005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202132010027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101066005010 + 101066005011.

It is an arithmetic number, because the mean of its divisors is an integer number (101066005011).

Almost surely, 2^202132010021 is an apocalyptic number.

It is an amenable number.

202132010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

202132010021 is an equidigital number, since it uses as much as digits as its factorization.

202132010021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 202132010021 its reverse (120010231202), we get a palindrome (322142241223).

The spelling of 202132010021 in words is "two hundred two billion, one hundred thirty-two million, ten thousand, twenty-one".