22501099 has 2 divisors, whose sum is σ = 22501100. Its totient is φ = 22501098.

The previous prime is 22501093. The next prime is 22501139. The reversal of 22501099 is 99010522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22501099 - 2³ = 22501091 is a prime.

It is a super-3 number, since 3×22501099³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22501091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11250549 + 11250550.

It is an arithmetic number, because the mean of its divisors is an integer number (11250550).

Almost surely, 2^22501099 is an apocalyptic number.

22501099 is a deficient number, since it is larger than the sum of its proper divisors (1).

22501099 is an equidigital number, since it uses as much as digits as its factorization.

22501099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 22501099 is about 4743.5323336096. The cubic root of 22501099 is about 282.3154050277.

The spelling of 22501099 in words is "twenty-two million, five hundred one thousand, ninety-nine".