10122310021 has 4 divisors (see below), whose sum is σ = 10655063200. Its totient is φ = 9589556844.

The previous prime is 10122309997. The next prime is 10122310031. The reversal of 10122310021 is 12001322101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12001322101 = 59 ⋅203412239.

It is a cyclic number.

It is not a de Polignac number, because 10122310021 - 2⁷ = 10122309893 is a prime.

It is a super-2 number, since 2×10122310021² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10122309983 and 10122310010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122310031) 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, 266376561 + ... + 266376598.

It is an arithmetic number, because the mean of its divisors is an integer number (2663765800).

Almost surely, 2^10122310021 is an apocalyptic number.

It is an amenable number.

10122310021 is a deficient number, since it is larger than the sum of its proper divisors (532753179).

10122310021 is an equidigital number, since it uses as much as digits as its factorization.

10122310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532753178.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10122310021 its reverse (12001322101), we get a palindrome (22123632122).

The spelling of 10122310021 in words is "ten billion, one hundred twenty-two million, three hundred ten thousand, twenty-one".