113220251250 has 80 divisors (see below), whose sum is σ = 284525072832. Its totient is φ = 30025080000.

The previous prime is 113220251201. The next prime is 113220251269. The reversal of 113220251250 is 52152022311.

It is a super-2 number, since 2×113220251250² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113220251250.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 595347 + ... + 762153.

Almost surely, 2^113220251250 is an apocalyptic number.

113220251250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 113220251250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142262536416).

113220251250 is an abundant number, since it is smaller than the sum of its proper divisors (171304821582).

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

113220251250 is a wasteful number, since it uses less digits than its factorization.

113220251250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167013 (or 166998 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 113220251250 its reverse (52152022311), we get a palindrome (165372273561).

The spelling of 113220251250 in words is "one hundred thirteen billion, two hundred twenty million, two hundred fifty-one thousand, two hundred fifty".