22021201110012 has 72 divisors (see below), whose sum is σ = 55718741136240. Its totient is φ = 6766087910400.

The previous prime is 22021201109969. The next prime is 22021201110031. The reversal of 22021201110012 is 21001110212022.

It is a junction number, because it is equal to n+sod(n) for n = 22021201109973 and 22021201110000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6323437 + ... + 9166692.

It is an arithmetic number, because the mean of its divisors is an integer number (773871404670).

Almost surely, 2^{22021201110012} is an apocalyptic number.

It is an amenable number.

22021201110012 is an abundant number, since it is smaller than the sum of its proper divisors (33697540026228).

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

22021201110012 is a wasteful number, since it uses less digits than its factorization.

22021201110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15490863 (or 15490848 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22021201110012 its reverse (21001110212022), we get a palindrome (43022311322034).

The spelling of 22021201110012 in words is "twenty-two trillion, twenty-one billion, two hundred one million, one hundred ten thousand, twelve".