11110321221 has 8 divisors (see below), whose sum is σ = 14825532960. Its totient is φ = 7400995152.

The previous prime is 11110321217. The next prime is 11110321223. The reversal of 11110321221 is 12212301111.

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

It is not a de Polignac number, because 11110321221 - 2² = 11110321217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11110321221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110321223) 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, 1467010 + ... + 1474563.

It is an arithmetic number, because the mean of its divisors is an integer number (1853191620).

Almost surely, 2^11110321221 is an apocalyptic number.

It is an amenable number.

11110321221 is a deficient number, since it is larger than the sum of its proper divisors (3715211739).

11110321221 is a wasteful number, since it uses less digits than its factorization.

11110321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942835.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11110321221 its reverse (12212301111), we get a palindrome (23322622332).

The spelling of 11110321221 in words is "eleven billion, one hundred ten million, three hundred twenty-one thousand, two hundred twenty-one".