10210202000021 has 4 divisors (see below), whose sum is σ = 10210215850944. Its totient is φ = 10210188149100.

The previous prime is 10210201999997. The next prime is 10210202000041. The reversal of 10210202000021 is 12000020201201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10210202000021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210201999966 and 10210202000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210202000041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5753645 + ... + 7316066.

It is an arithmetic number, because the mean of its divisors is an integer number (2552553962736).

Almost surely, 2^{10210202000021} is an apocalyptic number.

It is an amenable number.

10210202000021 is a deficient number, since it is larger than the sum of its proper divisors (13850923).

10210202000021 is an equidigital number, since it uses as much as digits as its factorization.

10210202000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13850922.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10210202000021 its reverse (12000020201201), we get a palindrome (22210222201222).

The spelling of 10210202000021 in words is "ten trillion, two hundred ten billion, two hundred two million, twenty-one", and thus it is an aban number.