1331111114221 has 32 divisors (see below), whose sum is σ = 1604074717440. Its totient is φ = 1080507326976.

The previous prime is 1331111114213. The next prime is 1331111114251. The reversal of 1331111114221 is 1224111111331.

It is not a de Polignac number, because 1331111114221 - 2³ = 1331111114213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331111114192 and 1331111114201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331111114251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2959015 + ... + 3379051.

It is an arithmetic number, because the mean of its divisors is an integer number (50127334920).

Almost surely, 2^{1331111114221} is an apocalyptic number.

It is an amenable number.

1331111114221 is a deficient number, since it is larger than the sum of its proper divisors (272963603219).

1331111114221 is a wasteful number, since it uses less digits than its factorization.

1331111114221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420373.

The product of its digits is 144, while the sum is 22.

Adding to 1331111114221 its reverse (1224111111331), we get a palindrome (2555222225552).

The spelling of 1331111114221 in words is "one trillion, three hundred thirty-one billion, one hundred eleven million, one hundred fourteen thousand, two hundred twenty-one".