133221210111 has 64 divisors (see below), whose sum is σ = 220492800000. Its totient is φ = 78798515040.

The previous prime is 133221210097. The next prime is 133221210137. The reversal of 133221210111 is 111012122331.

133221210111 is a `hidden beast` number, since 1 + 332 + 212 + 10 + 111 = 666.

It is not a de Polignac number, because 133221210111 - 2⁹ = 133221209599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133221210181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19140250 + ... + 19147208.

It is an arithmetic number, because the mean of its divisors is an integer number (3445200000).

Almost surely, 2^133221210111 is an apocalyptic number.

133221210111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133221210111 is a deficient number, since it is larger than the sum of its proper divisors (87271589889).

133221210111 is a wasteful number, since it uses less digits than its factorization.

133221210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8521 (or 8515 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 133221210111 its reverse (111012122331), we get a palindrome (244233332442).

The spelling of 133221210111 in words is "one hundred thirty-three billion, two hundred twenty-one million, two hundred ten thousand, one hundred eleven".