20221312133 has 8 divisors (see below), whose sum is σ = 23357237760. Its totient is φ = 17301657280.

The previous prime is 20221312129. The next prime is 20221312147. The reversal of 20221312133 is 33121312202.

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

It is a cyclic number.

It is not a de Polignac number, because 20221312133 - 2² = 20221312129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221302133) 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, 54067493 + ... + 54067866.

It is an arithmetic number, because the mean of its divisors is an integer number (2919654720).

Almost surely, 2^20221312133 is an apocalyptic number.

It is an amenable number.

20221312133 is a deficient number, since it is larger than the sum of its proper divisors (3135925627).

20221312133 is a wasteful number, since it uses less digits than its factorization.

20221312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108135387.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20221312133 its reverse (33121312202), we get a palindrome (53342624335).

The spelling of 20221312133 in words is "twenty billion, two hundred twenty-one million, three hundred twelve thousand, one hundred thirty-three".