1223505455532 has 48 divisors (see below), whose sum is σ = 2866837297632. Its totient is φ = 406125434880.

The previous prime is 1223505455519. The next prime is 1223505455539. The reversal of 1223505455532 is 2355545053221.

It is not an unprimeable number, because it can be changed into a prime (1223505455539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2751868 + ... + 3165404.

It is an arithmetic number, because the mean of its divisors is an integer number (59725777034).

Almost surely, 2^{1223505455532} is an apocalyptic number.

1223505455532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223505455532 is an abundant number, since it is smaller than the sum of its proper divisors (1643331842100).

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

1223505455532 is a wasteful number, since it uses less digits than its factorization.

1223505455532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414578 (or 414576 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 42.

The spelling of 1223505455532 in words is "one trillion, two hundred twenty-three billion, five hundred five million, four hundred fifty-five thousand, five hundred thirty-two".