10022220121 has 4 divisors (see below), whose sum is σ = 10022431744. Its totient is φ = 10022008500.

The previous prime is 10022220071. The next prime is 10022220127. The reversal of 10022220121 is 12102222001.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-10022220121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10022220127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516 + ... + 141586.

It is an arithmetic number, because the mean of its divisors is an integer number (2505607936).

Almost surely, 2^10022220121 is an apocalyptic number.

It is an amenable number.

10022220121 is a deficient number, since it is larger than the sum of its proper divisors (211623).

10022220121 is an equidigital number, since it uses as much as digits as its factorization.

10022220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211622.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10022220121 its reverse (12102222001), we get a palindrome (22124442122).

The spelling of 10022220121 in words is "ten billion, twenty-two million, two hundred twenty thousand, one hundred twenty-one".