112123202220 has 72 divisors (see below), whose sum is σ = 342785124864. Its totient is φ = 29664085248.

The previous prime is 112123202207. The next prime is 112123202327. The reversal of 112123202220 is 22202321211.

112123202220 is a `hidden beast` number, since 1 + 121 + 2 + 320 + 2 + 220 = 666.

It is a super-2 number, since 2×112123202220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112123202193 and 112123202202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2429529 + ... + 2475248.

It is an arithmetic number, because the mean of its divisors is an integer number (4760904512).

Almost surely, 2^112123202220 is an apocalyptic number.

112123202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112123202220 is an abundant number, since it is smaller than the sum of its proper divisors (230661922644).

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

112123202220 is a wasteful number, since it uses less digits than its factorization.

112123202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904919 (or 4904914 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 112123202220 its reverse (22202321211), we get a palindrome (134325523431).

The spelling of 112123202220 in words is "one hundred twelve billion, one hundred twenty-three million, two hundred two thousand, two hundred twenty".