21003220883 has 2 divisors, whose sum is σ = 21003220884. Its totient is φ = 21003220882.

The previous prime is 21003220853. The next prime is 21003220933. The reversal of 21003220883 is 38802230012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21003220883 - 2²⁰ = 21002172307 is a prime.

It is a super-2 number, since 2×21003220883² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21003220853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501610441 + 10501610442.

It is an arithmetic number, because the mean of its divisors is an integer number (10501610442).

Almost surely, 2^21003220883 is an apocalyptic number.

21003220883 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003220883 is an equidigital number, since it uses as much as digits as its factorization.

21003220883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 21003220883 its reverse (38802230012), we get a palindrome (59805450895).

The spelling of 21003220883 in words is "twenty-one billion, three million, two hundred twenty thousand, eight hundred eighty-three".