22001022120012 has 96 divisors (see below), whose sum is σ = 55417708093440. Its totient is φ = 6753252752640.

The previous prime is 22001022120001. The next prime is 22001022120041. The reversal of 22001022120012 is 21002122010022.

It is a junction number, because it is equal to n+sod(n) for n = 22001022119973 and 22001022120000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 705575062 + ... + 705606242.

It is an arithmetic number, because the mean of its divisors is an integer number (577267792640).

Almost surely, 2^{22001022120012} is an apocalyptic number.

It is an amenable number.

22001022120012 is an abundant number, since it is smaller than the sum of its proper divisors (33416685973428).

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

22001022120012 is a wasteful number, since it uses less digits than its factorization.

22001022120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41943 (or 41941 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22001022120012 its reverse (21002122010022), we get a palindrome (43003144130034).

The spelling of 22001022120012 in words is "twenty-two trillion, one billion, twenty-two million, one hundred twenty thousand, twelve".