1200001022232 has 32 divisors (see below), whose sum is σ = 3000068001600. Its totient is φ = 399991614624.

The previous prime is 1200001022219. The next prime is 1200001022239. The reversal of 1200001022232 is 2322201000021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200001022239) 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 7 ways as a sum of consecutive naturals, for example, 629319 + ... + 1672137.

It is an arithmetic number, because the mean of its divisors is an integer number (93752125050).

Almost surely, 2^{1200001022232} is an apocalyptic number.

1200001022232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200001022232 is an abundant number, since it is smaller than the sum of its proper divisors (1800066979368).

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

1200001022232 is a wasteful number, since it uses less digits than its factorization.

1200001022232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090775 (or 1090771 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1200001022232 its reverse (2322201000021), we get a palindrome (3522202022253).

The spelling of 1200001022232 in words is "one trillion, two hundred billion, one million, twenty-two thousand, two hundred thirty-two".