1121022212112 has 60 divisors (see below), whose sum is σ = 3422514788784. Its totient is φ = 339703700160.

The previous prime is 1121022212099. The next prime is 1121022212131. The reversal of 1121022212112 is 2112122201211.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353856438 + ... + 353859605.

Almost surely, 2^{1121022212112} is an apocalyptic number.

1121022212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121022212112 is an abundant number, since it is smaller than the sum of its proper divisors (2301492576672).

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

1121022212112 is a wasteful number, since it uses less digits than its factorization.

1121022212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707716068 (or 707716059 counting only the distinct ones).

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

Adding to 1121022212112 its reverse (2112122201211), we get a palindrome (3233144413323).

The spelling of 1121022212112 in words is "one trillion, one hundred twenty-one billion, twenty-two million, two hundred twelve thousand, one hundred twelve".