12252211643 has 8 divisors (see below), whose sum is σ = 14014494720. Its totient is φ = 10492920360.

The previous prime is 12252211639. The next prime is 12252211649. The reversal of 12252211643 is 34611225221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12252211643 - 2² = 12252211639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12252211649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739163 + ... + 755556.

It is an arithmetic number, because the mean of its divisors is an integer number (1751811840).

Almost surely, 2^12252211643 is an apocalyptic number.

12252211643 is a deficient number, since it is larger than the sum of its proper divisors (1762283077).

12252211643 is a wasteful number, since it uses less digits than its factorization.

12252211643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495897.

The product of its digits is 5760, while the sum is 29.

Adding to 12252211643 its reverse (34611225221), we get a palindrome (46863436864).

The spelling of 12252211643 in words is "twelve billion, two hundred fifty-two million, two hundred eleven thousand, six hundred forty-three".