1220432513232 has 40 divisors (see below), whose sum is σ = 3289861560384. Its totient is φ = 389123409664.

The previous prime is 1220432513221. The next prime is 1220432513233. The reversal of 1220432513232 is 2323152340221.

It is a super-3 number, since 3×1220432513232³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220432513232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220432513233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552731013 + ... + 552733220.

Almost surely, 2^{1220432513232} is an apocalyptic number.

1220432513232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220432513232 is an abundant number, since it is smaller than the sum of its proper divisors (2069429047152).

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

1220432513232 is a wasteful number, since it uses less digits than its factorization.

1220432513232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105464267 (or 1105464261 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 1220432513232 its reverse (2323152340221), we get a palindrome (3543584853453).

The spelling of 1220432513232 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, five hundred thirteen thousand, two hundred thirty-two".