222189974 has 4 divisors (see below), whose sum is σ = 333284964. Its totient is φ = 111094986.

The previous prime is 222189973. The next prime is 222189977. The reversal of 222189974 is 479981222.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×222189974² = 98736769092241352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222189973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55547492 + ... + 55547495.

It is an arithmetic number, because the mean of its divisors is an integer number (83321241).

Almost surely, 2^222189974 is an apocalyptic number.

222189974 is a deficient number, since it is larger than the sum of its proper divisors (111094990).

222189974 is a wasteful number, since it uses less digits than its factorization.

222189974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111094989.

The product of its digits is 145152, while the sum is 44.

The square root of 222189974 is about 14906.0381724991. The cubic root of 222189974 is about 605.6775634056.

The spelling of 222189974 in words is "two hundred twenty-two million, one hundred eighty-nine thousand, nine hundred seventy-four".