1121814492 has 24 divisors (see below), whose sum is σ = 2755334400. Its totient is φ = 354257136.

The previous prime is 1121814481. The next prime is 1121814493. The reversal of 1121814492 is 2944181211.

It is a super-2 number, since 2×1121814492² = 2516935508922436128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121814493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2459892 + ... + 2460347.

It is an arithmetic number, because the mean of its divisors is an integer number (114805600).

Almost surely, 2^1121814492 is an apocalyptic number.

1121814492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121814492 is an abundant number, since it is smaller than the sum of its proper divisors (1633519908).

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

1121814492 is a wasteful number, since it uses less digits than its factorization.

1121814492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920265 (or 4920263 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 1121814492 is about 33493.4992498544. The cubic root of 1121814492 is about 1039.0593355836.

The spelling of 1121814492 in words is "one billion, one hundred twenty-one million, eight hundred fourteen thousand, four hundred ninety-two".