12212202311 has 4 divisors (see below), whose sum is σ = 12279673224. Its totient is φ = 12144731400.

The previous prime is 12212202241. The next prime is 12212202319. The reversal of 12212202311 is 11320221221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212202311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212202311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212202319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33735185 + ... + 33735546.

It is an arithmetic number, because the mean of its divisors is an integer number (3069918306).

Almost surely, 2^12212202311 is an apocalyptic number.

12212202311 is a deficient number, since it is larger than the sum of its proper divisors (67470913).

12212202311 is an equidigital number, since it uses as much as digits as its factorization.

12212202311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67470912.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12212202311 its reverse (11320221221), we get a palindrome (23532423532).

The spelling of 12212202311 in words is "twelve billion, two hundred twelve million, two hundred two thousand, three hundred eleven".