10010002121021 has 4 divisors (see below), whose sum is σ = 11440002424032. Its totient is φ = 8580001818012.

The previous prime is 10010002121017. The next prime is 10010002121027. The reversal of 10010002121021 is 12012120001001.

10010002121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 10010002121021 - 2² = 10010002121017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10010002120993 and 10010002121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010002121027) 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, 715000151495 + ... + 715000151508.

It is an arithmetic number, because the mean of its divisors is an integer number (2860000606008).

Almost surely, 2^{10010002121021} is an apocalyptic number.

It is an amenable number.

10010002121021 is a deficient number, since it is larger than the sum of its proper divisors (1430000303011).

10010002121021 is an equidigital number, since it uses as much as digits as its factorization.

10010002121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430000303010.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10010002121021 its reverse (12012120001001), we get a palindrome (22022122122022).

The spelling of 10010002121021 in words is "ten trillion, ten billion, two million, one hundred twenty-one thousand, twenty-one".