222551022 has 8 divisors (see below), whose sum is σ = 445102056. Its totient is φ = 74183672.

The previous prime is 222551011. The next prime is 222551023. The reversal of 222551022 is 220155222.

It is a sphenic number, since it is the product of 3 distinct primes.

222551022 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 222551022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222551023) 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, 18545913 + ... + 18545924.

It is an arithmetic number, because the mean of its divisors is an integer number (55637757).

Almost surely, 2^222551022 is an apocalyptic number.

222551022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

222551022 is a wasteful number, since it uses less digits than its factorization.

222551022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37091842.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 222551022 is about 14918.1440534672. The cubic root of 222551022 is about 606.0054514862.

The spelling of 222551022 in words is "two hundred twenty-two million, five hundred fifty-one thousand, twenty-two".