1111133133221 has 16 divisors (see below), whose sum is σ = 1167768576000. Its totient is φ = 1055199274800.

The previous prime is 1111133133217. The next prime is 1111133133233. The reversal of 1111133133221 is 1223313311111.

It is a cyclic number.

It is not a de Polignac number, because 1111133133221 - 2² = 1111133133217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111133136221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6243530 + ... + 6419028.

It is an arithmetic number, because the mean of its divisors is an integer number (72985536000).

Almost surely, 2^{1111133133221} is an apocalyptic number.

It is an amenable number.

1111133133221 is a deficient number, since it is larger than the sum of its proper divisors (56635442779).

1111133133221 is a wasteful number, since it uses less digits than its factorization.

1111133133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177496.

The product of its digits is 324, while the sum is 23.

Adding to 1111133133221 its reverse (1223313311111), we get a palindrome (2334446444332).

The spelling of 1111133133221 in words is "one trillion, one hundred eleven billion, one hundred thirty-three million, one hundred thirty-three thousand, two hundred twenty-one".