222949128 has 16 divisors (see below), whose sum is σ = 557372880. Its totient is φ = 74316368.

The previous prime is 222949127. The next prime is 222949151. The reversal of 222949128 is 821949222.

222949128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (222949121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4644750 + ... + 4644797.

It is an arithmetic number, because the mean of its divisors is an integer number (34835805).

Almost surely, 2^222949128 is an apocalyptic number.

It is an amenable number.

222949128 is an abundant number, since it is smaller than the sum of its proper divisors (334423752).

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

222949128 is a wasteful number, since it uses less digits than its factorization.

222949128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9289556 (or 9289552 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 222949128 is about 14931.4811053693. The cubic root of 222949128 is about 606.3665831981.

The spelling of 222949128 in words is "two hundred twenty-two million, nine hundred forty-nine thousand, one hundred twenty-eight".