1121222312232 has 256 divisors, whose sum is σ = 3280132177920. Its totient is φ = 315912960000.

The previous prime is 1121222312213. The next prime is 1121222312267. The reversal of 1121222312232 is 2322132221211.

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 an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 373614732 + ... + 373617732.

It is an arithmetic number, because the mean of its divisors is an integer number (12813016320).

Almost surely, 2^{1121222312232} is an apocalyptic number.

1121222312232 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 1121222312232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1640066088960).

1121222312232 is an abundant number, since it is smaller than the sum of its proper divisors (2158909865688).

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

1121222312232 is a wasteful number, since it uses less digits than its factorization.

1121222312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744 (or 4740 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 1121222312232 its reverse (2322132221211), we get a palindrome (3443354533443).

The spelling of 1121222312232 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, three hundred twelve thousand, two hundred thirty-two".