1122122210112 has 112 divisors (see below), whose sum is σ = 3302247822720. Its totient is φ = 373653374976.

The previous prime is 1122122210107. The next prime is 1122122210123. The reversal of 1122122210112 is 2110122212211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1335208 + ... + 2006744.

It is an arithmetic number, because the mean of its divisors is an integer number (29484355560).

Almost surely, 2^{1122122210112} is an apocalyptic number.

1122122210112 is a gapful number since it is divisible by the number (12) 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 1122122210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651123911360).

1122122210112 is an abundant number, since it is smaller than the sum of its proper divisors (2180125612608).

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

1122122210112 is an equidigital number, since it uses as much as digits as its factorization.

1122122210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672525 (or 672509 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1122122210112 its reverse (2110122212211), we get a palindrome (3232244422323).

The spelling of 1122122210112 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred ten thousand, one hundred twelve".