133232221221 has 8 divisors (see below), whose sum is σ = 193792321824. Its totient is φ = 80746800720.

The previous prime is 133232221201. The next prime is 133232221223. The reversal of 133232221221 is 122122232331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133232221221 - 2⁵ = 133232221189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133232221191 and 133232221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133232221223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018669986 + ... + 2018670051.

It is an arithmetic number, because the mean of its divisors is an integer number (24224040228).

Almost surely, 2^133232221221 is an apocalyptic number.

133232221221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133232221221 is a deficient number, since it is larger than the sum of its proper divisors (60560100603).

133232221221 is a wasteful number, since it uses less digits than its factorization.

133232221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037340051.

The product of its digits is 1728, while the sum is 24.

Adding to 133232221221 its reverse (122122232331), we get a palindrome (255354453552).

It can be divided in two parts, 133232 and 221221, that added together give a palindrome (354453).

The spelling of 133232221221 in words is "one hundred thirty-three billion, two hundred thirty-two million, two hundred twenty-one thousand, two hundred twenty-one".