12201434212440 has 64 divisors (see below), whose sum is σ = 39931966517760. Its totient is φ = 2957923445120.

The previous prime is 12201434212423. The next prime is 12201434212459. The reversal of 12201434212440 is 4421243410221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12201434212398 and 12201434212407.

It is a congruent number.

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, 4621754064 + ... + 4621756703.

It is an arithmetic number, because the mean of its divisors is an integer number (623936976840).

Almost surely, 2^{12201434212440} is an apocalyptic number.

12201434212440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201434212440 is an abundant number, since it is smaller than the sum of its proper divisors (27730532305320).

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

12201434212440 is a wasteful number, since it uses less digits than its factorization.

12201434212440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9243510792 (or 9243510788 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 12201434212440 its reverse (4421243410221), we get a palindrome (16622677622661).

The spelling of 12201434212440 in words is "twelve trillion, two hundred one billion, four hundred thirty-four million, two hundred twelve thousand, four hundred forty".