222088986 has 192 divisors, whose sum is σ = 636595200. Its totient is φ = 56049408.

The previous prime is 222088981. The next prime is 222089011. The reversal of 222088986 is 689880222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222088981) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2075545 + ... + 2075651.

It is an arithmetic number, because the mean of its divisors is an integer number (3315600).

Almost surely, 2^222088986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222088986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318297600).

222088986 is an abundant number, since it is smaller than the sum of its proper divisors (414506214).

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

222088986 is a wasteful number, since it uses less digits than its factorization.

222088986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 222088986 is about 14902.6503012048. The cubic root of 222088986 is about 605.5857869348.

The spelling of 222088986 in words is "two hundred twenty-two million, eighty-eight thousand, nine hundred eighty-six".