22100010012 has 36 divisors (see below), whose sum is σ = 56406291760. Its totient is φ = 7295147712.

The previous prime is 22100010011. The next prime is 22100010017. The reversal of 22100010012 is 21001000122.

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

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 22100009976 and 22100010003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100010011) 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, 2976337 + ... + 2983752.

Almost surely, 2^22100010012 is an apocalyptic number.

It is an amenable number.

22100010012 is an abundant number, since it is smaller than the sum of its proper divisors (34306281748).

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

22100010012 is a wasteful number, since it uses less digits than its factorization.

22100010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960202 (or 5960197 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22100010012 its reverse (21001000122), we get a palindrome (43101010134).

The spelling of 22100010012 in words is "twenty-two billion, one hundred million, ten thousand, twelve".