22099970 has 8 divisors (see below), whose sum is σ = 39779964. Its totient is φ = 8839984.

The previous prime is 22099967. The next prime is 22099997. The reversal of 22099970 is 7999022.

It can be written as a sum of positive squares in 2 ways, for example, as 20529961 + 1570009 = 4531^2 + 1253^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104989 + ... + 1105008.

Almost surely, 2^22099970 is an apocalyptic number.

22099970 is a deficient number, since it is larger than the sum of its proper divisors (17679994).

22099970 is a wasteful number, since it uses less digits than its factorization.

22099970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210004.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 22099970 is about 4701.0605186490. The cubic root of 22099970 is about 280.6277158581.

The spelling of 22099970 in words is "twenty-two million, ninety-nine thousand, nine hundred seventy".