210122130321013 has 4 divisors (see below), whose sum is σ = 210123839406988. Its totient is φ = 210120421235040.

The previous prime is 210122130320987. The next prime is 210122130321113. The reversal of 210122130321013 is 310123031221012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109156148719524 + 100965981601489 = 10447782^2 + 10048183^2 .

It is a cyclic number.

It is not a de Polignac number, because 210122130321013 - 2⁴¹ = 207923107065461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122130321113) 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, 854358558 + ... + 854604463.

It is an arithmetic number, because the mean of its divisors is an integer number (52530959851747).

Almost surely, 2^{210122130321013} is an apocalyptic number.

It is an amenable number.

210122130321013 is a deficient number, since it is larger than the sum of its proper divisors (1709085975).

210122130321013 is a wasteful number, since it uses less digits than its factorization.

210122130321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709085974.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 210122130321013 its reverse (310123031221012), we get a palindrome (520245161542025).

The spelling of 210122130321013 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred thirty million, three hundred twenty-one thousand, thirteen".