390222032221 has 32 divisors (see below), whose sum is σ = 461812285440. Its totient is φ = 322663046400.

The previous prime is 390222032203. The next prime is 390222032251. The reversal of 390222032221 is 122230222093.

It is a cyclic number.

It is not a de Polignac number, because 390222032221 - 2⁷ = 390222032093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390222032221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390222032251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103752981 + ... + 103756741.

It is an arithmetic number, because the mean of its divisors is an integer number (14431633920).

Almost surely, 2^390222032221 is an apocalyptic number.

390222032221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

390222032221 is a deficient number, since it is larger than the sum of its proper divisors (71590253219).

390222032221 is a wasteful number, since it uses less digits than its factorization.

390222032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 390222032221 in words is "three hundred ninety billion, two hundred twenty-two million, thirty-two thousand, two hundred twenty-one".