222199989 has 16 divisors (see below), whose sum is σ = 325076544. Its totient is φ = 133884800.

The previous prime is 222199961. The next prime is 222199993. The reversal of 222199989 is 989991222.

222199989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 222199989 - 2⁹ = 222199477 is a prime.

It is a super-2 number, since 2×222199989² = 98745670223200242, which contains 22 as substring.

It is a Curzon number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 13752 + ... + 25169.

It is an arithmetic number, because the mean of its divisors is an integer number (20317284).

Almost surely, 2^222199989 is an apocalyptic number.

It is an amenable number.

222199989 is a deficient number, since it is larger than the sum of its proper divisors (102876555).

222199989 is a wasteful number, since it uses less digits than its factorization.

222199989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39108.

The product of its digits is 419904, while the sum is 51.

The square root of 222199989 is about 14906.3741064016. The cubic root of 222199989 is about 605.6866633807.

The spelling of 222199989 in words is "two hundred twenty-two million, one hundred ninety-nine thousand, nine hundred eighty-nine".