112221120001020 has 96 divisors (see below), whose sum is σ = 319528629650496. Its totient is φ = 29420452454400.

The previous prime is 112221120001013. The next prime is 112221120001057. The reversal of 112221120001020 is 20100021122211.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218551 + ... + 14982990.

It is an arithmetic number, because the mean of its divisors is an integer number (3328423225526).

Almost surely, 2^{112221120001020} is an apocalyptic number.

112221120001020 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 112221120001020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159764314825248).

112221120001020 is an abundant number, since it is smaller than the sum of its proper divisors (207307509649476).

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

112221120001020 is a wasteful number, since it uses less digits than its factorization.

112221120001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15203631 (or 15203629 counting only the distinct ones).

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

Adding to 112221120001020 its reverse (20100021122211), we get a palindrome (132321141123231).

The spelling of 112221120001020 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred twenty million, one thousand, twenty".