21032232211 has 2 divisors, whose sum is σ = 21032232212. Its totient is φ = 21032232210.

The previous prime is 21032232167. The next prime is 21032232259. The reversal of 21032232211 is 11223223012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21032232211 - 2⁷ = 21032232083 is a prime.

It is not a weakly prime, because it can be changed into another prime (21032232271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516116105 + 10516116106.

It is an arithmetic number, because the mean of its divisors is an integer number (10516116106).

Almost surely, 2^21032232211 is an apocalyptic number.

21032232211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032232211 is an equidigital number, since it uses as much as digits as its factorization.

21032232211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21032232211 its reverse (11223223012), we get a palindrome (32255455223).

The spelling of 21032232211 in words is "twenty-one billion, thirty-two million, two hundred thirty-two thousand, two hundred eleven".