112211222121220 has 48 divisors (see below), whose sum is σ = 245653338018816. Its totient is φ = 43006536720000.

The previous prime is 112211222121179. The next prime is 112211222121233. The reversal of 112211222121220 is 22121222112211.

It is a junction number, because it is equal to n+sod(n) for n = 112211222121191 and 112211222121200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 895906896 + ... + 896032135.

It is an arithmetic number, because the mean of its divisors is an integer number (5117777875392).

Almost surely, 2^{112211222121220} is an apocalyptic number.

112211222121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112211222121220 is an abundant number, since it is smaller than the sum of its proper divisors (133442115897596).

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

112211222121220 is a wasteful number, since it uses less digits than its factorization.

112211222121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791939172 (or 1791939170 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 112211222121220 its reverse (22121222112211), we get a palindrome (134332444233431).

Subtracting from 112211222121220 its reverse (22121222112211), we obtain a palindrome (90090000009009).

The spelling of 112211222121220 in words is "one hundred twelve trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty".