12235320400420 has 48 divisors (see below), whose sum is σ = 27840406345920. Its totient is φ = 4489941062016.

The previous prime is 12235320400409. The next prime is 12235320400477. The reversal of 12235320400420 is 2400402353221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144310150 + ... + 144394909.

It is an arithmetic number, because the mean of its divisors is an integer number (580008465540).

Almost surely, 2^{12235320400420} is an apocalyptic number.

12235320400420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12235320400420 is an abundant number, since it is smaller than the sum of its proper divisors (15605085945500).

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

12235320400420 is a wasteful number, since it uses less digits than its factorization.

12235320400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288705244 (or 288705242 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 12235320400420 its reverse (2400402353221), we get a palindrome (14635722753641).

The spelling of 12235320400420 in words is "twelve trillion, two hundred thirty-five billion, three hundred twenty million, four hundred thousand, four hundred twenty".