222241210021 has 4 divisors (see below), whose sum is σ = 229410281344. Its totient is φ = 215072138700.

The previous prime is 222241209989. The next prime is 222241210031. The reversal of 222241210021 is 120012142222.

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 222241210021 - 2⁵ = 222241209989 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 (222241210031) 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, 3584535615 + ... + 3584535676.

It is an arithmetic number, because the mean of its divisors is an integer number (57352570336).

Almost surely, 2^222241210021 is an apocalyptic number.

It is an amenable number.

222241210021 is a deficient number, since it is larger than the sum of its proper divisors (7169071323).

222241210021 is an equidigital number, since it uses as much as digits as its factorization.

222241210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169071322.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222241210021 its reverse (120012142222), we get a palindrome (342253352243).

The spelling of 222241210021 in words is "two hundred twenty-two billion, two hundred forty-one million, two hundred ten thousand, twenty-one".