222221020101121 has 4 divisors (see below), whose sum is σ = 225350893623744. Its totient is φ = 219091146578500.

The previous prime is 222221020101043. The next prime is 222221020101151. The reversal of 222221020101121 is 121101020122222.

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 222221020101121 - 2⁷ = 222221020100993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221020101151) 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, 1564936761205 + ... + 1564936761346.

It is an arithmetic number, because the mean of its divisors is an integer number (56337723405936).

Almost surely, 2^{222221020101121} is an apocalyptic number.

It is an amenable number.

222221020101121 is a deficient number, since it is larger than the sum of its proper divisors (3129873522623).

222221020101121 is an equidigital number, since it uses as much as digits as its factorization.

222221020101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129873522622.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222221020101121 its reverse (121101020122222), we get a palindrome (343322040223343).

The spelling of 222221020101121 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty million, one hundred one thousand, one hundred twenty-one".