112202112121220 has 72 divisors (see below), whose sum is σ = 259104230274624. Its totient is φ = 40783110984000.

The previous prime is 112202112121189. The next prime is 112202112121237. The reversal of 112202112121220 is 22121211202211.

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 = 112202112121192 and 112202112121201.

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, 4438646 + ... + 15623885.

Almost surely, 2^{112202112121220} is an apocalyptic number.

112202112121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112202112121220 is an abundant number, since it is smaller than the sum of its proper divisors (146902118153404).

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

112202112121220 is a wasteful number, since it uses less digits than its factorization.

112202112121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20064873 (or 20064860 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 112202112121220 its reverse (22121211202211), we get a palindrome (134323323323431).

The spelling of 112202112121220 in words is "one hundred twelve trillion, two hundred two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twenty".