221222432133 has 6 divisors (see below), whose sum is σ = 319543513094. Its totient is φ = 147481621416.

The previous prime is 221222432117. The next prime is 221222432147. The reversal of 221222432133 is 331234222122.

221222432133 is a `hidden beast` number, since 2 + 2 + 1 + 222 + 432 + 1 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 167901618564 + 53320813569 = 409758^2 + 230913^2 .

It is not a de Polignac number, because 221222432133 - 2⁴ = 221222432117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221222432097 and 221222432106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222432153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12290135110 + ... + 12290135127.

Almost surely, 2^221222432133 is an apocalyptic number.

It is an amenable number.

221222432133 is a deficient number, since it is larger than the sum of its proper divisors (98321080961).

221222432133 is a wasteful number, since it uses less digits than its factorization.

221222432133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24580270243 (or 24580270240 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 221222432133 its reverse (331234222122), we get a palindrome (552456654255).

The spelling of 221222432133 in words is "two hundred twenty-one billion, two hundred twenty-two million, four hundred thirty-two thousand, one hundred thirty-three".