12211411345 has 16 divisors (see below), whose sum is σ = 17287308288. Its totient is φ = 8103424320.

The previous prime is 12211411319. The next prime is 12211411349. The reversal of 12211411345 is 54311411221.

It is a happy number.

It is not a de Polignac number, because 12211411345 - 2⁵ = 12211411313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211411349) 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, 5626294 + ... + 5628463.

It is an arithmetic number, because the mean of its divisors is an integer number (1080456768).

Almost surely, 2^12211411345 is an apocalyptic number.

It is an amenable number.

12211411345 is a deficient number, since it is larger than the sum of its proper divisors (5075896943).

12211411345 is a wasteful number, since it uses less digits than its factorization.

12211411345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11254800.

The product of its digits is 960, while the sum is 25.

Adding to 12211411345 its reverse (54311411221), we get a palindrome (66522822566).

The spelling of 12211411345 in words is "twelve billion, two hundred eleven million, four hundred eleven thousand, three hundred forty-five".