220112212120120 has 128 divisors (see below), whose sum is σ = 532967436187200. Its totient is φ = 81557840093184.

The previous prime is 220112212120049. The next prime is 220112212120123. The reversal of 220112212120120 is 21021212211022.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112212120123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2476864 + ... + 21127216.

Almost surely, 2^{220112212120120} is an apocalyptic number.

220112212120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220112212120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266483718093600).

220112212120120 is an abundant number, since it is smaller than the sum of its proper divisors (312855224067080).

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

220112212120120 is a wasteful number, since it uses less digits than its factorization.

220112212120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18650729 (or 18650725 counting only the distinct ones).

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

Adding to 220112212120120 its reverse (21021212211022), we get a palindrome (241133424331142).

The spelling of 220112212120120 in words is "two hundred twenty trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty".