22120002121312 has 48 divisors (see below), whose sum is σ = 44564502894912. Its totient is φ = 10802067615360.

The previous prime is 22120002121303. The next prime is 22120002121367. The reversal of 22120002121312 is 21312120002122.

It is a self number, because there is not a number n which added to its sum of digits gives 22120002121312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20289043 + ... + 21351469.

It is an arithmetic number, because the mean of its divisors is an integer number (928427143644).

Almost surely, 2^{22120002121312} is an apocalyptic number.

It is an amenable number.

22120002121312 is an abundant number, since it is smaller than the sum of its proper divisors (22444500773600).

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

22120002121312 is a wasteful number, since it uses less digits than its factorization.

22120002121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077611 (or 1077603 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22120002121312 its reverse (21312120002122), we get a palindrome (43432122123434).

The spelling of 22120002121312 in words is "twenty-two trillion, one hundred twenty billion, two million, one hundred twenty-one thousand, three hundred twelve".