128452222 has 16 divisors (see below), whose sum is σ = 197144640. Its totient is φ = 62742528.

The previous prime is 128452193. The next prime is 128452229. The reversal of 128452222 is 222254821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128452229) 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, 71398 + ... + 73174.

It is an arithmetic number, because the mean of its divisors is an integer number (12321540).

Almost surely, 2^128452222 is an apocalyptic number.

128452222 is a deficient number, since it is larger than the sum of its proper divisors (68692418).

128452222 is a wasteful number, since it uses less digits than its factorization.

128452222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595.

The product of its digits is 5120, while the sum is 28.

The square root of 128452222 is about 11333.6764555902. The cubic root of 128452222 is about 504.5612265640.

The spelling of 128452222 in words is "one hundred twenty-eight million, four hundred fifty-two thousand, two hundred twenty-two".