10120010210021 has 4 divisors (see below), whose sum is σ = 10122054248544. Its totient is φ = 10117966171500.

The previous prime is 10120010210017. The next prime is 10120010210059. The reversal of 10120010210021 is 12001201002101.

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 10120010210021 - 2² = 10120010210017 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 = 10120010209984 and 10120010210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120010210521) 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, 1022011835 + ... + 1022021736.

It is an arithmetic number, because the mean of its divisors is an integer number (2530513562136).

Almost surely, 2^{10120010210021} is an apocalyptic number.

It is an amenable number.

10120010210021 is a deficient number, since it is larger than the sum of its proper divisors (2044038523).

10120010210021 is an equidigital number, since it uses as much as digits as its factorization.

10120010210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044038522.

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

Adding to 10120010210021 its reverse (12001201002101), we get a palindrome (22121211212122).

The spelling of 10120010210021 in words is "ten trillion, one hundred twenty billion, ten million, two hundred ten thousand, twenty-one".