189912211220222 has 16 divisors (see below), whose sum is σ = 301625572554432. Its totient is φ = 89370364661760.

The previous prime is 189912211220213. The next prime is 189912211220261. The reversal of 189912211220222 is 222022112219981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43964222 + ... + 48090302.

It is an arithmetic number, because the mean of its divisors is an integer number (18851598284652).

Almost surely, 2^{189912211220222} is an apocalyptic number.

189912211220222 is a deficient number, since it is larger than the sum of its proper divisors (111713361334210).

189912211220222 is a wasteful number, since it uses less digits than its factorization.

189912211220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479843.

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 189912211220222 in words is "one hundred eighty-nine trillion, nine hundred twelve billion, two hundred eleven million, two hundred twenty thousand, two hundred twenty-two".