222046450621 has 4 divisors (see below), whose sum is σ = 222068738752. Its totient is φ = 222024162492.

The previous prime is 222046450607. The next prime is 222046450693. The reversal of 222046450621 is 126054640222.

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 222046450621 - 2³³ = 213456516029 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 (222046450601) 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, 11129115 + ... + 11149048.

It is an arithmetic number, because the mean of its divisors is an integer number (55517184688).

Almost surely, 2^222046450621 is an apocalyptic number.

It is an amenable number.

222046450621 is a deficient number, since it is larger than the sum of its proper divisors (22288131).

222046450621 is an equidigital number, since it uses as much as digits as its factorization.

222046450621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22288130.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 222046450621 in words is "two hundred twenty-two billion, forty-six million, four hundred fifty thousand, six hundred twenty-one".