390121012222 has 4 divisors (see below), whose sum is σ = 585181518336. Its totient is φ = 195060506110.

The previous prime is 390121012189. The next prime is 390121012261. The reversal of 390121012222 is 222210121093.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 97530253054 + ... + 97530253057.

It is an arithmetic number, because the mean of its divisors is an integer number (146295379584).

Almost surely, 2^390121012222 is an apocalyptic number.

390121012222 is a deficient number, since it is larger than the sum of its proper divisors (195060506114).

390121012222 is a wasteful number, since it uses less digits than its factorization.

390121012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195060506113.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 390121012222 in words is "three hundred ninety billion, one hundred twenty-one million, twelve thousand, two hundred twenty-two".