1112212101220 has 192 divisors, whose sum is σ = 2691642949632. Its totient is φ = 382416768000.

The previous prime is 1112212101191. The next prime is 1112212101239. The reversal of 1112212101220 is 221012122111.

It is a junction number, because it is equal to n+sod(n) for n = 1112212101194 and 1112212101203.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43653085 + ... + 43678555.

It is an arithmetic number, because the mean of its divisors is an integer number (14018973696).

Almost surely, 2^{1112212101220} is an apocalyptic number.

1112212101220 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 1112212101220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1345821474816).

1112212101220 is an abundant number, since it is smaller than the sum of its proper divisors (1579430848412).

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

1112212101220 is a wasteful number, since it uses less digits than its factorization.

1112212101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25682 (or 25680 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1112212101220 its reverse (221012122111), we get a palindrome (1333224223331).

The spelling of 1112212101220 in words is "one trillion, one hundred twelve billion, two hundred twelve million, one hundred one thousand, two hundred twenty".