222309025 has 12 divisors (see below), whose sum is σ = 290172400. Its totient is φ = 168486480.

The previous prime is 222309001. The next prime is 222309047. The reversal of 222309025 is 520903222.

It is not a de Polignac number, because 222309025 - 2¹³ = 222300833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233535 + ... + 234484.

Almost surely, 2^222309025 is an apocalyptic number.

222309025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222309025 is a deficient number, since it is larger than the sum of its proper divisors (67863375).

222309025 is a wasteful number, since it uses less digits than its factorization.

222309025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468048 (or 468043 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 222309025 is about 14910.0310194178. The cubic root of 222309025 is about 605.7857195685.

The spelling of 222309025 in words is "two hundred twenty-two million, three hundred nine thousand, twenty-five".