112121212200220 has 48 divisors (see below), whose sum is σ = 242685082535616. Its totient is φ = 43491950208000.

The previous prime is 112121212200113. The next prime is 112121212200223. The reversal of 112121212200220 is 22002212121211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121212200223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647115021 + ... + 647288260.

It is an arithmetic number, because the mean of its divisors is an integer number (5055939219492).

Almost surely, 2^{112121212200220} is an apocalyptic number.

112121212200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112121212200220 is an abundant number, since it is smaller than the sum of its proper divisors (130563870335396).

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

112121212200220 is a wasteful number, since it uses less digits than its factorization.

112121212200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294403422 (or 1294403420 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 112121212200220 its reverse (22002212121211), we get a palindrome (134123424321431).

The spelling of 112121212200220 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred twelve million, two hundred thousand, two hundred twenty".