1822120112 has 40 divisors (see below), whose sum is σ = 3866940000. Its totient is φ = 827896832.

The previous prime is 1822120103. The next prime is 1822120151. The reversal of 1822120112 is 2110212281.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107612 + ... + 123387.

It is an arithmetic number, because the mean of its divisors is an integer number (96673500).

Almost surely, 2^1822120112 is an apocalyptic number.

It is an amenable number.

1822120112 is an abundant number, since it is smaller than the sum of its proper divisors (2044819888).

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

1822120112 is a wasteful number, since it uses less digits than its factorization.

1822120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231053 (or 231047 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1822120112 is about 42686.2988791486. The cubic root of 1822120112 is about 1221.4030512261.

Adding to 1822120112 its reverse (2110212281), we get a palindrome (3932332393).

The spelling of 1822120112 in words is "one billion, eight hundred twenty-two million, one hundred twenty thousand, one hundred twelve".