222199979 has 8 divisors (see below), whose sum is σ = 236965680. Its totient is φ = 207622656.

The previous prime is 222199961. The next prime is 222199993. The reversal of 222199979 is 979991222.

It is a happy number.

222199979 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 a cyclic number.

It is not a de Polignac number, because 222199979 - 2¹⁶ = 222134443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222199919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44654 + ... + 49379.

It is an arithmetic number, because the mean of its divisors is an integer number (29620710).

Almost surely, 2^222199979 is an apocalyptic number.

222199979 is a deficient number, since it is larger than the sum of its proper divisors (14765701).

222199979 is a wasteful number, since it uses less digits than its factorization.

222199979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94189.

The product of its digits is 367416, while the sum is 50.

The square root of 222199979 is about 14906.3737709746. The cubic root of 222199979 is about 605.6866542945.

The spelling of 222199979 in words is "two hundred twenty-two million, one hundred ninety-nine thousand, nine hundred seventy-nine".