1113332221221 has 32 divisors (see below), whose sum is σ = 1720510070400. Its totient is φ = 633872090880.

The previous prime is 1113332221217. The next prime is 1113332221223. The reversal of 1113332221221 is 1221222333111.

It is not a de Polignac number, because 1113332221221 - 2² = 1113332221217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113332221191 and 1113332221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113332221223) 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, 15685626 + ... + 15756443.

It is an arithmetic number, because the mean of its divisors is an integer number (53765939700).

Almost surely, 2^{1113332221221} is an apocalyptic number.

1113332221221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1113332221221 is a deficient number, since it is larger than the sum of its proper divisors (607177849179).

1113332221221 is a wasteful number, since it uses less digits than its factorization.

1113332221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31442149.

The product of its digits is 864, while the sum is 24.

Adding to 1113332221221 its reverse (1221222333111), we get a palindrome (2334554554332).

The spelling of 1113332221221 in words is "one trillion, one hundred thirteen billion, three hundred thirty-two million, two hundred twenty-one thousand, two hundred twenty-one".