10320212121 has 16 divisors (see below), whose sum is σ = 14492163840. Its totient is φ = 6514583760.

The previous prime is 10320212113. The next prime is 10320212129. The reversal of 10320212121 is 12121202301.

It is an interprime number because it is at equal distance from previous prime (10320212113) and next prime (10320212129).

It is not a de Polignac number, because 10320212121 - 2³ = 10320212113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10320212121.

It is not an unprimeable number, because it can be changed into a prime (10320212129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63186 + ... + 156948.

It is an arithmetic number, because the mean of its divisors is an integer number (905760240).

Almost surely, 2^10320212121 is an apocalyptic number.

It is an amenable number.

10320212121 is a deficient number, since it is larger than the sum of its proper divisors (4171951719).

10320212121 is a wasteful number, since it uses less digits than its factorization.

10320212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95716.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10320212121 its reverse (12121202301), we get a palindrome (22441414422).

The spelling of 10320212121 in words is "ten billion, three hundred twenty million, two hundred twelve thousand, one hundred twenty-one".