11412352221 has 8 divisors (see below), whose sum is σ = 15878055360. Its totient is φ = 7277441952.

The previous prime is 11412352213. The next prime is 11412352243. The reversal of 11412352221 is 12225321411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11412352221 - 2³ = 11412352213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11412352191 and 11412352200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11412352291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82698136 + ... + 82698273.

It is an arithmetic number, because the mean of its divisors is an integer number (1984756920).

Almost surely, 2^11412352221 is an apocalyptic number.

It is an amenable number.

11412352221 is a deficient number, since it is larger than the sum of its proper divisors (4465703139).

11412352221 is a wasteful number, since it uses less digits than its factorization.

11412352221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165396435.

The product of its digits is 960, while the sum is 24.

Adding to 11412352221 its reverse (12225321411), we get a palindrome (23637673632).

The spelling of 11412352221 in words is "eleven billion, four hundred twelve million, three hundred fifty-two thousand, two hundred twenty-one".