222251550 has 48 divisors (see below), whose sum is σ = 580200960. Its totient is φ = 56147040.

The previous prime is 222251537. The next prime is 222251551. The reversal of 222251550 is 55152222.

It is a self number, because there is not a number n which added to its sum of digits gives 222251550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222251551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36142 + ... + 41841.

It is an arithmetic number, because the mean of its divisors is an integer number (12087520).

Almost surely, 2^222251550 is an apocalyptic number.

222251550 is an abundant number, since it is smaller than the sum of its proper divisors (357949410).

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

222251550 is a wasteful number, since it uses less digits than its factorization.

222251550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78017 (or 78012 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 222251550 is about 14908.1035011164. The cubic root of 222251550 is about 605.7335091597.

The spelling of 222251550 in words is "two hundred twenty-two million, two hundred fifty-one thousand, five hundred fifty".