12145452211 has 16 divisors (see below), whose sum is σ = 12870494208. Its totient is φ = 11443017600.

The previous prime is 12145452199. The next prime is 12145452217. The reversal of 12145452211 is 11225454121.

It is not a de Polignac number, because 12145452211 - 2⁷ = 12145452083 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 12145452211.

It is not an unprimeable number, because it can be changed into a prime (12145452217) 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, 399915 + ... + 429211.

It is an arithmetic number, because the mean of its divisors is an integer number (804405888).

Almost surely, 2^12145452211 is an apocalyptic number.

12145452211 is a deficient number, since it is larger than the sum of its proper divisors (725041997).

12145452211 is a wasteful number, since it uses less digits than its factorization.

12145452211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29682.

The product of its digits is 3200, while the sum is 28.

The spelling of 12145452211 in words is "twelve billion, one hundred forty-five million, four hundred fifty-two thousand, two hundred eleven".