22211110012 has 48 divisors (see below), whose sum is σ = 47852271040. Its totient is φ = 8784433152.

The previous prime is 22211109979. The next prime is 22211110021. The reversal of 22211110012 is 21001111222.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 22211109974 and 22211110001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2021638 + ... + 2032594.

Almost surely, 2^22211110012 is an apocalyptic number.

It is an amenable number.

22211110012 is an abundant number, since it is smaller than the sum of its proper divisors (25641161028).

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

22211110012 is a wasteful number, since it uses less digits than its factorization.

22211110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16550 (or 16548 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22211110012 its reverse (21001111222), we get a palindrome (43212221234).

The spelling of 22211110012 in words is "twenty-two billion, two hundred eleven million, one hundred ten thousand, twelve".