20203133312221 has 8 divisors (see below), whose sum is σ = 20215411048800. Its totient is φ = 20190856294032.

The previous prime is 20203133312191. The next prime is 20203133312231. The reversal of 20203133312221 is 12221333130202.

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 20203133312221 - 2³⁹ = 19653377498333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203133312231) 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, 62745586 + ... + 63066748.

It is an arithmetic number, because the mean of its divisors is an integer number (2526926381100).

Almost surely, 2^{20203133312221} is an apocalyptic number.

It is an amenable number.

20203133312221 is a deficient number, since it is larger than the sum of its proper divisors (12277736579).

20203133312221 is a wasteful number, since it uses less digits than its factorization.

20203133312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359195.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20203133312221 its reverse (12221333130202), we get a palindrome (32424466442423).

The spelling of 20203133312221 in words is "twenty trillion, two hundred three billion, one hundred thirty-three million, three hundred twelve thousand, two hundred twenty-one".