203132212221 has 8 divisors (see below), whose sum is σ = 274885381984. Its totient is φ = 133400258640.

The previous prime is 203132212211. The next prime is 203132212259. The reversal of 203132212221 is 122212231302.

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

It is not a de Polignac number, because 203132212221 - 2²³ = 203123823613 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 (203132212211) 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, 505303810 + ... + 505304211.

It is an arithmetic number, because the mean of its divisors is an integer number (34360672748).

Almost surely, 2^203132212221 is an apocalyptic number.

It is an amenable number.

203132212221 is a deficient number, since it is larger than the sum of its proper divisors (71753169763).

203132212221 is a wasteful number, since it uses less digits than its factorization.

203132212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010608091.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 203132212221 its reverse (122212231302), we get a palindrome (325344443523).

The spelling of 203132212221 in words is "two hundred three billion, one hundred thirty-two million, two hundred twelve thousand, two hundred twenty-one".