12211452444 has 48 divisors (see below), whose sum is σ = 30264802848. Its totient is φ = 3818938368.

The previous prime is 12211452401. The next prime is 12211452467. The reversal of 12211452444 is 44425411221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29749 + ... + 159084.

It is an arithmetic number, because the mean of its divisors is an integer number (630516726).

Almost surely, 2^12211452444 is an apocalyptic number.

It is an amenable number.

12211452444 is an abundant number, since it is smaller than the sum of its proper divisors (18053350404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211452444 is a wasteful number, since it uses less digits than its factorization.

12211452444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189174 (or 189172 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

Adding to 12211452444 its reverse (44425411221), we get a palindrome (56636863665).

The spelling of 12211452444 in words is "twelve billion, two hundred eleven million, four hundred fifty-two thousand, four hundred forty-four".