1222789535232 has 80 divisors (see below), whose sum is σ = 3259319983920. Its totient is φ = 407379771392.

The previous prime is 1222789535207. The next prime is 1222789535273. The reversal of 1222789535232 is 2325359872221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2690788 + ... + 3112220.

It is an arithmetic number, because the mean of its divisors is an integer number (40741499799).

Almost surely, 2^{1222789535232} is an apocalyptic number.

1222789535232 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 1222789535232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629659991960).

1222789535232 is an abundant number, since it is smaller than the sum of its proper divisors (2036530448688).

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

1222789535232 is an equidigital number, since it uses as much as digits as its factorization.

1222789535232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423343 (or 423327 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 1222789535232 in words is "one trillion, two hundred twenty-two billion, seven hundred eighty-nine million, five hundred thirty-five thousand, two hundred thirty-two".