1122400100112 has 40 divisors (see below), whose sum is σ = 2999517512640. Its totient is φ = 361232215680.

The previous prime is 1122400100093. The next prime is 1122400100113. The reversal of 1122400100112 is 2110010042211.

It is a junction number, because it is equal to n+sod(n) for n = 1122400100091 and 1122400100100.

It is not an unprimeable number, because it can be changed into a prime (1122400100113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403159564 + ... + 403162347.

It is an arithmetic number, because the mean of its divisors is an integer number (74987937816).

Almost surely, 2^{1122400100112} is an apocalyptic number.

1122400100112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122400100112 is an abundant number, since it is smaller than the sum of its proper divisors (1877117412528).

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

1122400100112 is a wasteful number, since it uses less digits than its factorization.

1122400100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806321951 (or 806321945 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1122400100112 its reverse (2110010042211), we get a palindrome (3232410142323).

The spelling of 1122400100112 in words is "one trillion, one hundred twenty-two billion, four hundred million, one hundred thousand, one hundred twelve".