22839011921 has 24 divisors (see below), whose sum is σ = 26656186464. Its totient is φ = 19400264640.

The previous prime is 22839011917. The next prime is 22839011927. The reversal of 22839011921 is 12911093822.

It is not a de Polignac number, because 22839011921 - 2² = 22839011917 is a prime.

It is a super-2 number, since 2×22839011921² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22839011927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250490 + ... + 329276.

It is an arithmetic number, because the mean of its divisors is an integer number (1110674436).

Almost surely, 2^22839011921 is an apocalyptic number.

It is an amenable number.

22839011921 is a deficient number, since it is larger than the sum of its proper divisors (3817174543).

22839011921 is a wasteful number, since it uses less digits than its factorization.

22839011921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78909 (or 78890 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

It can be divided in two parts, 2283901 and 1921, that added together give a palindrome (2285822).

The spelling of 22839011921 in words is "twenty-two billion, eight hundred thirty-nine million, eleven thousand, nine hundred twenty-one".