11445214211 has 4 divisors (see below), whose sum is σ = 11839876800. Its totient is φ = 11050551624.

The previous prime is 11445214189. The next prime is 11445214289. The reversal of 11445214211 is 11241254411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11241254411 = 19 ⋅591644969.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11445214211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11445219211) 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, 197331251 + ... + 197331308.

It is an arithmetic number, because the mean of its divisors is an integer number (2959969200).

Almost surely, 2^11445214211 is an apocalyptic number.

11445214211 is a deficient number, since it is larger than the sum of its proper divisors (394662589).

11445214211 is an equidigital number, since it uses as much as digits as its factorization.

11445214211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394662588.

The product of its digits is 1280, while the sum is 26.

Adding to 11445214211 its reverse (11241254411), we get a palindrome (22686468622).

The spelling of 11445214211 in words is "eleven billion, four hundred forty-five million, two hundred fourteen thousand, two hundred eleven".