12735222253720 has 64 divisors (see below), whose sum is σ = 29365692501600. Its totient is φ = 4967716561920.

The previous prime is 12735222253661. The next prime is 12735222253723. The reversal of 12735222253720 is 2735222253721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735222253723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2175982 + ... + 5495938.

Almost surely, 2^{12735222253720} is an apocalyptic number.

12735222253720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12735222253720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14682846250800).

12735222253720 is an abundant number, since it is smaller than the sum of its proper divisors (16630470247880).

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

12735222253720 is a wasteful number, since it uses less digits than its factorization.

12735222253720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322348 (or 3322344 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

Subtracting from 12735222253720 its reverse (2735222253721), we obtain a palindrome (9999999999999).

The spelling of 12735222253720 in words is "twelve trillion, seven hundred thirty-five billion, two hundred twenty-two million, two hundred fifty-three thousand, seven hundred twenty".