112122211020 has 96 divisors (see below), whose sum is σ = 328471621632. Its totient is φ = 28522483968.

The previous prime is 112122211007. The next prime is 112122211021. The reversal of 112122211020 is 20112221211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (112122211021) 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, 405829 + ... + 623651.

It is an arithmetic number, because the mean of its divisors is an integer number (3421579392).

Almost surely, 2^112122211020 is an apocalyptic number.

112122211020 is a gapful number since it is divisible by the number (10) 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 112122211020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164235810816).

112122211020 is an abundant number, since it is smaller than the sum of its proper divisors (216349410612).

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

112122211020 is a wasteful number, since it uses less digits than its factorization.

112122211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218231 (or 218229 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112122211020 its reverse (20112221211), we get a palindrome (132234432231).

The spelling of 112122211020 in words is "one hundred twelve billion, one hundred twenty-two million, two hundred eleven thousand, twenty".