22099725819 has 24 divisors (see below), whose sum is σ = 33915095760. Its totient is φ = 13840642368.

The previous prime is 22099725799. The next prime is 22099725821. The reversal of 22099725819 is 91852799022.

It is not a de Polignac number, because 22099725819 - 2¹⁷ = 22099594747 is a prime.

It is a super-2 number, since 2×22099725819² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22099725839) 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, 1134577 + ... + 1153890.

It is an arithmetic number, because the mean of its divisors is an integer number (1413128990).

Almost surely, 2^22099725819 is an apocalyptic number.

22099725819 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22099725819 is a deficient number, since it is larger than the sum of its proper divisors (11815369941).

22099725819 is a wasteful number, since it uses less digits than its factorization.

22099725819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288539 (or 2288536 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 22099725819 in words is "twenty-two billion, ninety-nine million, seven hundred twenty-five thousand, eight hundred nineteen".