12212532343 has 12 divisors (see below), whose sum is σ = 13493615688. Its totient is φ = 10961705040.

The previous prime is 12212532331. The next prime is 12212532361. The reversal of 12212532343 is 34323521221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12212532343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212532313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20296 + ... + 157597.

It is an arithmetic number, because the mean of its divisors is an integer number (1124467974).

Almost surely, 2^12212532343 is an apocalyptic number.

12212532343 is a deficient number, since it is larger than the sum of its proper divisors (1281083345).

12212532343 is an equidigital number, since it uses as much as digits as its factorization.

12212532343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178062 (or 177983 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The spelling of 12212532343 in words is "twelve billion, two hundred twelve million, five hundred thirty-two thousand, three hundred forty-three".