22001199 has 24 divisors (see below), whose sum is σ = 32957568. Its totient is φ = 12947040.

The previous prime is 22001197. The next prime is 22001207. The reversal of 22001199 is 99110022.

It is not a de Polignac number, because 22001199 - 2¹ = 22001197 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44934 + ... + 45420.

It is an arithmetic number, because the mean of its divisors is an integer number (1373232).

Almost surely, 2^22001199 is an apocalyptic number.

22001199 is a deficient number, since it is larger than the sum of its proper divisors (10956369).

22001199 is a wasteful number, since it uses less digits than its factorization.

22001199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 22001199 is about 4690.5435719115. The cubic root of 22001199 is about 280.2090233445.

The spelling of 22001199 in words is "twenty-two million, one thousand, one hundred ninety-nine".