222777028 has 12 divisors (see below), whose sum is σ = 392836752. Its totient is φ = 110537960.

The previous prime is 222777019. The next prime is 222777031. The reversal of 222777028 is 820777222.

222777028 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 unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212050 + ... + 213097.

It is an arithmetic number, because the mean of its divisors is an integer number (32736396).

Almost surely, 2^222777028 is an apocalyptic number.

It is an amenable number.

222777028 is a deficient number, since it is larger than the sum of its proper divisors (170059724).

222777028 is a wasteful number, since it uses less digits than its factorization.

222777028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425282 (or 425280 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 222777028 is about 14925.7170012030. The cubic root of 222777028 is about 606.2105198650.

The spelling of 222777028 in words is "two hundred twenty-two million, seven hundred seventy-seven thousand, twenty-eight".