22113819 has 72 divisors (see below), whose sum is σ = 41413632. Its totient is φ = 11119680.

The previous prime is 22113803. The next prime is 22113823. The reversal of 22113819 is 91831122.

It is not a de Polignac number, because 22113819 - 2⁴ = 22113803 is a prime.

It is a super-2 number, since 2×22113819² = 978041981529522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22113792 and 22113801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111819) 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 71 ways as a sum of consecutive naturals, for example, 330024 + ... + 330090.

Almost surely, 2^22113819 is an apocalyptic number.

22113819 is a deficient number, since it is larger than the sum of its proper divisors (19299813).

22113819 is a wasteful number, since it uses less digits than its factorization.

22113819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 121 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 22113819 is about 4702.5332534709. The cubic root of 22113819 is about 280.6863222982.

The spelling of 22113819 in words is "twenty-two million, one hundred thirteen thousand, eight hundred nineteen".