112220122520 has 64 divisors (see below), whose sum is σ = 278936179200. Its totient is φ = 40290756480.

The previous prime is 112220122501. The next prime is 112220122583. The reversal of 112220122520 is 25221022211.

It is a super-2 number, since 2×112220122520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112220122492 and 112220122501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579454 + ... + 1648973.

It is an arithmetic number, because the mean of its divisors is an integer number (4358377800).

Almost surely, 2^112220122520 is an apocalyptic number.

112220122520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112220122520 is an abundant number, since it is smaller than the sum of its proper divisors (166716056680).

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

112220122520 is a wasteful number, since it uses less digits than its factorization.

112220122520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228528 (or 3228524 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 112220122520 its reverse (25221022211), we get a palindrome (137441144731).

The spelling of 112220122520 in words is "one hundred twelve billion, two hundred twenty million, one hundred twenty-two thousand, five hundred twenty".