112919220 has 36 divisors (see below), whose sum is σ = 342522180. Its totient is φ = 30111744.

The previous prime is 112919197. The next prime is 112919237. The reversal of 112919220 is 22919211.

It can be written as a sum of positive squares in 2 ways, for example, as 60559524 + 52359696 = 7782^2 + 7236^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313485 + ... + 313844.

It is an arithmetic number, because the mean of its divisors is an integer number (9514505).

Almost surely, 2^112919220 is an apocalyptic number.

112919220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112919220 is an abundant number, since it is smaller than the sum of its proper divisors (229602960).

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

112919220 is a wasteful number, since it uses less digits than its factorization.

112919220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627344 (or 627339 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 112919220 is about 10626.3455618571. The cubic root of 112919220 is about 483.3435822903.

Subtracting from 112919220 its reverse (22919211), we obtain a palindrome (90000009).

The spelling of 112919220 in words is "one hundred twelve million, nine hundred nineteen thousand, two hundred twenty".