22120012002100 has 72 divisors (see below), whose sum is σ = 48580629078240. Its totient is φ = 8741063210880.

The previous prime is 22120012002097. The next prime is 22120012002161. The reversal of 22120012002100 is 120021002122.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 406448691 + ... + 406503109.

It is an arithmetic number, because the mean of its divisors is an integer number (674730959420).

Almost surely, 2^{22120012002100} is an apocalyptic number.

22120012002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120012002100 is an abundant number, since it is smaller than the sum of its proper divisors (26460617076140).

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

22120012002100 is a wasteful number, since it uses less digits than its factorization.

22120012002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103489 (or 103482 counting only the distinct ones).

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

Adding to 22120012002100 its reverse (120021002122), we get a palindrome (22240033004222).

The spelling of 22120012002100 in words is "twenty-two trillion, one hundred twenty billion, twelve million, two thousand, one hundred".