22120001002120 has 64 divisors (see below), whose sum is σ = 58040818992000. Its totient is φ = 7584000338880.

The previous prime is 22120001002117. The next prime is 22120001002133. The reversal of 22120001002120 is 2120010002122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22120001002120.

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, 806108766 + ... + 806136205.

It is an arithmetic number, because the mean of its divisors is an integer number (906887796750).

Almost surely, 2^{22120001002120} is an apocalyptic number.

22120001002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120001002120 is an abundant number, since it is smaller than the sum of its proper divisors (35920817989880).

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

22120001002120 is a wasteful number, since it uses less digits than its factorization.

22120001002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612245003 (or 1612244985 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22120001002120 its reverse (2120010002122), we get a palindrome (24240011004242).

The spelling of 22120001002120 in words is "twenty-two trillion, one hundred twenty billion, one million, two thousand, one hundred twenty".