1121212824 has 32 divisors (see below), whose sum is σ = 2862673920. Its totient is φ = 365785376.

The previous prime is 1121212789. The next prime is 1121212837. The reversal of 1121212824 is 4282121211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1121212794 and 1121212803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495864 + ... + 498119.

It is an arithmetic number, because the mean of its divisors is an integer number (89458560).

Almost surely, 2^1121212824 is an apocalyptic number.

It is an amenable number.

1121212824 is an abundant number, since it is smaller than the sum of its proper divisors (1741461096).

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

1121212824 is a wasteful number, since it uses less digits than its factorization.

1121212824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994039 (or 994035 counting only the distinct ones).

The product of its digits is 512, while the sum is 24.

The square root of 1121212824 is about 33484.5161828568. The cubic root of 1121212824 is about 1038.8735411834.

The spelling of 1121212824 in words is "one billion, one hundred twenty-one million, two hundred twelve thousand, eight hundred twenty-four".