112221112100 has 18 divisors (see below), whose sum is σ = 243519813474. Its totient is φ = 44888444800.

The previous prime is 112221112067. The next prime is 112221112117. The reversal of 112221112100 is 1211122211.

It can be written as a sum of positive squares in 3 ways, for example, as 11772684004 + 100448428096 = 108502^2 + 316936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 561105461 + ... + 561105660.

Almost surely, 2^112221112100 is an apocalyptic number.

112221112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112221112100 is an abundant number, since it is smaller than the sum of its proper divisors (131298701374).

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

112221112100 is a wasteful number, since it uses less digits than its factorization.

112221112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122211135 (or 1122211128 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 112221112100 its reverse (1211122211), we get a palindrome (113432234311).

It can be divided in two parts, 1122211 and 12100, that added together give a palindrome (1134311).

The spelling of 112221112100 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred twelve thousand, one hundred".