1122120432 has 160 divisors (see below), whose sum is σ = 3411091200. Its totient is φ = 352574208.

The previous prime is 1122120427. The next prime is 1122120443. The reversal of 1122120432 is 2340212211.

It is a happy number.

1122120432 is a `hidden beast` number, since 11 + 221 + 2 + 0 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 31 ways as a sum of consecutive naturals, for example, 537663 + ... + 539745.

It is an arithmetic number, because the mean of its divisors is an integer number (21319320).

Almost surely, 2^1122120432 is an apocalyptic number.

1122120432 is a gapful number since it is divisible by the number (12) 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 1122120432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1705545600).

1122120432 is an abundant number, since it is smaller than the sum of its proper divisors (2288970768).

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

1122120432 is a wasteful number, since it uses less digits than its factorization.

1122120432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2160 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1122120432 is about 33498.0660934329. The cubic root of 1122120432 is about 1039.1537840335.

Adding to 1122120432 its reverse (2340212211), we get a palindrome (3462332643).

The spelling of 1122120432 in words is "one billion, one hundred twenty-two million, one hundred twenty thousand, four hundred thirty-two".