22503120012100 has 144 divisors (see below), whose sum is σ = 60110674892800. Its totient is φ = 7120677496320.

The previous prime is 22503120012071. The next prime is 22503120012103. The reversal of 22503120012100 is 121002130522.

It is not an unprimeable number, because it can be changed into a prime (22503120012103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55115506 + ... + 55522294.

Almost surely, 2^{22503120012100} is an apocalyptic number.

22503120012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22503120012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30055337446400).

22503120012100 is an abundant number, since it is smaller than the sum of its proper divisors (37607554880700).

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

22503120012100 is a wasteful number, since it uses less digits than its factorization.

22503120012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412902 (or 412895 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 22503120012100 its reverse (121002130522), we get a palindrome (22624122142622).

The spelling of 22503120012100 in words is "twenty-two trillion, five hundred three billion, one hundred twenty million, twelve thousand, one hundred".