22699121 has 4 divisors (see below), whose sum is σ = 22731072. Its totient is φ = 22667172.

The previous prime is 22699109. The next prime is 22699123. The reversal of 22699121 is 12199622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22699121 - 2¹⁸ = 22436977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22699123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14885 + ... + 16338.

It is an arithmetic number, because the mean of its divisors is an integer number (5682768).

Almost surely, 2^22699121 is an apocalyptic number.

It is an amenable number.

22699121 is a deficient number, since it is larger than the sum of its proper divisors (31951).

22699121 is an equidigital number, since it uses as much as digits as its factorization.

22699121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31950.

The product of its digits is 3888, while the sum is 32.

The square root of 22699121 is about 4764.3594532739. The cubic root of 22699121 is about 283.1411641170.

The spelling of 22699121 in words is "twenty-two million, six hundred ninety-nine thousand, one hundred twenty-one".