222202978 has 8 divisors (see below), whose sum is σ = 344056320. Its totient is φ = 107517540.

The previous prime is 222202961. The next prime is 222202979. The reversal of 222202978 is 879202222.

222202978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (222202979) 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, 1791898 + ... + 1792021.

It is an arithmetic number, because the mean of its divisors is an integer number (43007040).

Almost surely, 2^222202978 is an apocalyptic number.

222202978 is a deficient number, since it is larger than the sum of its proper divisors (121853342).

222202978 is a wasteful number, since it uses less digits than its factorization.

222202978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583952.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 222202978 is about 14906.4743651878. The cubic root of 222202978 is about 605.6893792364.

The spelling of 222202978 in words is "two hundred twenty-two million, two hundred two thousand, nine hundred seventy-eight".