22103112204 has 36 divisors (see below), whose sum is σ = 55887891696. Its totient is φ = 7365576288.

The previous prime is 22103112203. The next prime is 22103112211. The reversal of 22103112204 is 40221130122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22103112204² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22103112203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40297 + ... + 214079.

It is an arithmetic number, because the mean of its divisors is an integer number (1552441436).

Almost surely, 2^22103112204 is an apocalyptic number.

It is an amenable number.

22103112204 is an abundant number, since it is smaller than the sum of its proper divisors (33784779492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22103112204 is a wasteful number, since it uses less digits than its factorization.

22103112204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177326 (or 177321 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22103112204 its reverse (40221130122), we get a palindrome (62324242326).

The spelling of 22103112204 in words is "twenty-two billion, one hundred three million, one hundred twelve thousand, two hundred four".