111444010221 has 16 divisors (see below), whose sum is σ = 159487968384. Its totient is φ = 68967765504.

The previous prime is 111444010213. The next prime is 111444010247. The reversal of 111444010221 is 122010444111.

It is not a de Polignac number, because 111444010221 - 2³ = 111444010213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111444010421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14963241 + ... + 14970686.

It is an arithmetic number, because the mean of its divisors is an integer number (9967998024).

Almost surely, 2^111444010221 is an apocalyptic number.

It is an amenable number.

111444010221 is a deficient number, since it is larger than the sum of its proper divisors (48043958163).

111444010221 is a wasteful number, since it uses less digits than its factorization.

111444010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29934020.

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

Adding to 111444010221 its reverse (122010444111), we get a palindrome (233454454332).

The spelling of 111444010221 in words is "one hundred eleven billion, four hundred forty-four million, ten thousand, two hundred twenty-one".