11214412221 has 4 divisors (see below), whose sum is σ = 14952549632. Its totient is φ = 7476274812.

The previous prime is 11214412217. The next prime is 11214412241. The reversal of 11214412221 is 12221441211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11214412221 - 2² = 11214412217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11214412211) 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, 1869068701 + ... + 1869068706.

It is an arithmetic number, because the mean of its divisors is an integer number (3738137408).

Almost surely, 2^11214412221 is an apocalyptic number.

It is an amenable number.

11214412221 is a deficient number, since it is larger than the sum of its proper divisors (3738137411).

11214412221 is an equidigital number, since it uses as much as digits as its factorization.

11214412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738137410.

The product of its digits is 256, while the sum is 21.

Adding to 11214412221 its reverse (12221441211), we get a palindrome (23435853432).

The spelling of 11214412221 in words is "eleven billion, two hundred fourteen million, four hundred twelve thousand, two hundred twenty-one".