1220432513236 has 12 divisors (see below), whose sum is σ = 2135846052340. Its totient is φ = 610190784000.

The previous prime is 1220432513233. The next prime is 1220432513299. The reversal of 1220432513236 is 6323152340221.

It can be written as a sum of positive squares in 2 ways, for example, as 220120488900 + 1000312024336 = 469170^2 + 1000156^2 .

It is a super-3 number, since 3×1220432513236³ (a number of 37 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6260151 + ... + 6452158.

Almost surely, 2^{1220432513236} is an apocalyptic number.

It is an amenable number.

1220432513236 is a deficient number, since it is larger than the sum of its proper divisors (915413539104).

1220432513236 is a wasteful number, since it uses less digits than its factorization.

1220432513236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12736314 (or 12736312 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 1220432513236 its reverse (6323152340221), we get a palindrome (7543584853457).

The spelling of 1220432513236 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, five hundred thirteen thousand, two hundred thirty-six".