1121422040 has 64 divisors (see below), whose sum is σ = 2637835200. Its totient is φ = 428262912.

The previous prime is 1121422033. The next prime is 1121422073. The reversal of 1121422040 is 402241211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784046 + ... + 785474.

It is an arithmetic number, because the mean of its divisors is an integer number (41216175).

Almost surely, 2^1121422040 is an apocalyptic number.

1121422040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121422040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318917600).

1121422040 is an abundant number, since it is smaller than the sum of its proper divisors (1516413160).

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

1121422040 is a wasteful number, since it uses less digits than its factorization.

1121422040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316 (or 2312 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1121422040 is about 33487.6401079562. The cubic root of 1121422040 is about 1038.9381543845.

Adding to 1121422040 its reverse (402241211), we get a palindrome (1523663251).

The spelling of 1121422040 in words is "one billion, one hundred twenty-one million, four hundred twenty-two thousand, forty".