222866899 has 4 divisors (see below), whose sum is σ = 224362800. Its totient is φ = 221371000.

The previous prime is 222866879. The next prime is 222866933. The reversal of 222866899 is 998668222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998668222 = 2 ⋅499334111.

It is a cyclic number.

It is not a de Polignac number, because 222866899 - 2⁵ = 222866867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222866879) 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, 747727 + ... + 748024.

It is an arithmetic number, because the mean of its divisors is an integer number (56090700).

Almost surely, 2^222866899 is an apocalyptic number.

222866899 is a deficient number, since it is larger than the sum of its proper divisors (1495901).

222866899 is a wasteful number, since it uses less digits than its factorization.

222866899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495900.

The product of its digits is 1492992, while the sum is 52.

The square root of 222866899 is about 14928.7273067733. The cubic root of 222866899 is about 606.2920265052.

The spelling of 222866899 in words is "two hundred twenty-two million, eight hundred sixty-six thousand, eight hundred ninety-nine".