12240420332 has 24 divisors (see below), whose sum is σ = 24560600064. Its totient is φ = 5228803152.

The previous prime is 12240420329. The next prime is 12240420341. The reversal of 12240420332 is 23302404221.

It is a junction number, because it is equal to n+sod(n) for n = 12240420298 and 12240420307.

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, 703388 + ... + 720579.

It is an arithmetic number, because the mean of its divisors is an integer number (1023358336).

Almost surely, 2^12240420332 is an apocalyptic number.

It is an amenable number.

12240420332 is an abundant number, since it is smaller than the sum of its proper divisors (12320179732).

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

12240420332 is a wasteful number, since it uses less digits than its factorization.

12240420332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424285 (or 1424283 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12240420332 its reverse (23302404221), we get a palindrome (35542824553).

The spelling of 12240420332 in words is "twelve billion, two hundred forty million, four hundred twenty thousand, three hundred thirty-two".