1121432223132 has 216 divisors, whose sum is σ = 3122590174704. Its totient is φ = 339138229248.

The previous prime is 1121432223061. The next prime is 1121432223133. The reversal of 1121432223132 is 2313222341211.

1121432223132 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 432 + 223 + 1 + 3 + 2 = 666.

It is a super-2 number, since 2×1121432223132² (a number of 25 digits) contains 22 as substring.

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 = 1121432223096 and 1121432223105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121432223133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99473848 + ... + 99485120.

It is an arithmetic number, because the mean of its divisors is an integer number (14456435994).

Almost surely, 2^{1121432223132} is an apocalyptic number.

1121432223132 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 1121432223132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561295087352).

1121432223132 is an abundant number, since it is smaller than the sum of its proper divisors (2001157951572).

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

1121432223132 is a wasteful number, since it uses less digits than its factorization.

1121432223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11589 (or 11571 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 1121432223132 its reverse (2313222341211), we get a palindrome (3434654564343).

The spelling of 1121432223132 in words is "one trillion, one hundred twenty-one billion, four hundred thirty-two million, two hundred twenty-three thousand, one hundred thirty-two".