189612222 has 16 divisors (see below), whose sum is σ = 379424640. Its totient is φ = 63170712.

The previous prime is 189612221. The next prime is 189612223. The reversal of 189612222 is 222216981.

189612222 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189612221) and next prime (189612223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189612221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5823 + ... + 20325.

It is an arithmetic number, because the mean of its divisors is an integer number (23714040).

Almost surely, 2^189612222 is an apocalyptic number.

189612222 is an abundant number, since it is smaller than the sum of its proper divisors (189812418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189612222 is a wasteful number, since it uses less digits than its factorization.

189612222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16687.

The product of its digits is 6912, while the sum is 33.

The square root of 189612222 is about 13769.9753812416. The cubic root of 189612222 is about 574.4983369908.

The spelling of 189612222 in words is "one hundred eighty-nine million, six hundred twelve thousand, two hundred twenty-two".