10122112002221 has 4 divisors (see below), whose sum is σ = 10654854739200. Its totient is φ = 9589369265244.

The previous prime is 10122112002151. The next prime is 10122112002229. The reversal of 10122112002221 is 12220021122101.

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 10122112002221 - 2²⁶ = 10122044893357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10122112002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122112002229) 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, 266371368461 + ... + 266371368498.

It is an arithmetic number, because the mean of its divisors is an integer number (2663713684800).

Almost surely, 2^{10122112002221} is an apocalyptic number.

It is an amenable number.

10122112002221 is a deficient number, since it is larger than the sum of its proper divisors (532742736979).

10122112002221 is an equidigital number, since it uses as much as digits as its factorization.

10122112002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532742736978.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10122112002221 its reverse (12220021122101), we get a palindrome (22342133124322).

The spelling of 10122112002221 in words is "ten trillion, one hundred twenty-two billion, one hundred twelve million, two thousand, two hundred twenty-one".