21212332132183 has 2 divisors, whose sum is σ = 21212332132184. Its totient is φ = 21212332132182.

The previous prime is 21212332132153. The next prime is 21212332132217. The reversal of 21212332132183 is 38123123321212.

It is an a-pointer prime, because the next prime (21212332132217) can be obtained adding 21212332132183 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21212332132183 - 2³⁷ = 21074893178711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21212332132153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606166066091 + 10606166066092.

It is an arithmetic number, because the mean of its divisors is an integer number (10606166066092).

Almost surely, 2^{21212332132183} is an apocalyptic number.

21212332132183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21212332132183 is an equidigital number, since it uses as much as digits as its factorization.

21212332132183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

Adding to 21212332132183 its reverse (38123123321212), we get a palindrome (59335455453395).

The spelling of 21212332132183 in words is "twenty-one trillion, two hundred twelve billion, three hundred thirty-two million, one hundred thirty-two thousand, one hundred eighty-three".