222264320715221 has 4 divisors (see below), whose sum is σ = 222264355603872. Its totient is φ = 222264285826572.

The previous prime is 222264320715197. The next prime is 222264320715251. The reversal of 222264320715221 is 122517023462222.

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 222264320715221 - 2¹⁴ = 222264320698837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222264320715251) 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, 4864241 + ... + 21637686.

It is an arithmetic number, because the mean of its divisors is an integer number (55566088900968).

Almost surely, 2^{222264320715221} is an apocalyptic number.

It is an amenable number.

222264320715221 is a deficient number, since it is larger than the sum of its proper divisors (34888651).

222264320715221 is an equidigital number, since it uses as much as digits as its factorization.

222264320715221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34888650.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 222264320715221 in words is "two hundred twenty-two trillion, two hundred sixty-four billion, three hundred twenty million, seven hundred fifteen thousand, two hundred twenty-one".