113222220212500 has 72 divisors (see below), whose sum is σ = 283037435194752. Its totient is φ = 38819046900000.

The previous prime is 113222220212477. The next prime is 113222220212501. The reversal of 113222220212500 is 5212022222311.

It is a super-2 number, since 2×113222220212500² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113222220212501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 646896616 + ... + 647071615.

It is an arithmetic number, because the mean of its divisors is an integer number (3931075488816).

Almost surely, 2^{113222220212500} is an apocalyptic number.

113222220212500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113222220212500 is an abundant number, since it is smaller than the sum of its proper divisors (169815214982252).

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

113222220212500 is an equidigital number, since it uses as much as digits as its factorization.

113222220212500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293968267 (or 1293968245 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 113222220212500 its reverse (5212022222311), we get a palindrome (118434242434811).

The spelling of 113222220212500 in words is "one hundred thirteen trillion, two hundred twenty-two billion, two hundred twenty million, two hundred twelve thousand, five hundred".