1112199121 has 8 divisors (see below), whose sum is σ = 1252447488. Its totient is φ = 978474000.

The previous prime is 1112199119. The next prime is 1112199131. The reversal of 1112199121 is 1219912111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112199121 - 2¹ = 1112199119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112199121.

It is not an unprimeable number, because it can be changed into a prime (1112199131) 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, 1630450 + ... + 1631131.

It is an arithmetic number, because the mean of its divisors is an integer number (156555936).

Almost surely, 2^1112199121 is an apocalyptic number.

1112199121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112199121 is a deficient number, since it is larger than the sum of its proper divisors (140248367).

1112199121 is a wasteful number, since it uses less digits than its factorization.

1112199121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261623.

The product of its digits is 324, while the sum is 28.

The square root of 1112199121 is about 33349.6494884129. The cubic root of 1112199121 is about 1036.0821283336.

The spelling of 1112199121 in words is "one billion, one hundred twelve million, one hundred ninety-nine thousand, one hundred twenty-one".