222668880 has 80 divisors (see below), whose sum is σ = 788889984. Its totient is φ = 50895360.

The previous prime is 222668879. The next prime is 222668881. The reversal of 222668880 is 88866222.

It is an interprime number because it is at equal distance from previous prime (222668879) and next prime (222668881).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222668881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64591 + ... + 67950.

Almost surely, 2^222668880 is an apocalyptic number.

222668880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222668880 is an abundant number, since it is smaller than the sum of its proper divisors (566221104).

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

222668880 is a wasteful number, since it uses less digits than its factorization.

222668880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132564 (or 132558 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 222668880 is about 14922.0936868792. The cubic root of 222668880 is about 606.1124082126.

The spelling of 222668880 in words is "two hundred twenty-two million, six hundred sixty-eight thousand, eight hundred eighty".