20132333221 has 16 divisors (see below), whose sum is σ = 27030826368. Its totient is φ = 14480798400.

The previous prime is 20132333213. The next prime is 20132333237. The reversal of 20132333221 is 12233323102.

It is a cyclic number.

It is not a de Polignac number, because 20132333221 - 2³ = 20132333213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20132333192 and 20132333201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132334221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10055110 + ... + 10057111.

It is an arithmetic number, because the mean of its divisors is an integer number (1689426648).

Almost surely, 2^20132333221 is an apocalyptic number.

It is an amenable number.

20132333221 is a deficient number, since it is larger than the sum of its proper divisors (6898493147).

20132333221 is a wasteful number, since it uses less digits than its factorization.

20132333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20112252.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20132333221 its reverse (12233323102), we get a palindrome (32365656323).

It can be divided in two parts, 20132 and 333221, that added together give a palindrome (353353).

The spelling of 20132333221 in words is "twenty billion, one hundred thirty-two million, three hundred thirty-three thousand, two hundred twenty-one".