222226290 has 192 divisors, whose sum is σ = 701955072. Its totient is φ = 48038400.

The previous prime is 222226283. The next prime is 222226307. The reversal of 222226290 is 92622222.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 398692 + ... + 399248.

It is an arithmetic number, because the mean of its divisors is an integer number (3656016).

Almost surely, 2^222226290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222226290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350977536).

222226290 is an abundant number, since it is smaller than the sum of its proper divisors (479728782).

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

222226290 is a wasteful number, since it uses less digits than its factorization.

222226290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 222226290 is about 14907.2562867887. The cubic root of 222226290 is about 605.7105600762.

The spelling of 222226290 in words is "two hundred twenty-two million, two hundred twenty-six thousand, two hundred ninety".