21002222183 has 2 divisors, whose sum is σ = 21002222184. Its totient is φ = 21002222182.

The previous prime is 21002222159. The next prime is 21002222233. The reversal of 21002222183 is 38122220012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21002222183 - 2¹⁴ = 21002205799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21002222123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501111091 + 10501111092.

It is an arithmetic number, because the mean of its divisors is an integer number (10501111092).

Almost surely, 2^21002222183 is an apocalyptic number.

21002222183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002222183 is an equidigital number, since it uses as much as digits as its factorization.

21002222183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21002222183 its reverse (38122220012), we get a palindrome (59124442195).

The spelling of 21002222183 in words is "twenty-one billion, two million, two hundred twenty-two thousand, one hundred eighty-three".