21229429567883 has 2 divisors, whose sum is σ = 21229429567884. Its totient is φ = 21229429567882.

The previous prime is 21229429567817. The next prime is 21229429567891. The reversal of 21229429567883 is 38876592492212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21229429567883 - 2²² = 21229425373579 is a prime.

It is not a weakly prime, because it can be changed into another prime (21229489567883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10614714783941 + 10614714783942.

It is an arithmetic number, because the mean of its divisors is an integer number (10614714783942).

Almost surely, 2^{21229429567883} is an apocalyptic number.

21229429567883 is a deficient number, since it is larger than the sum of its proper divisors (1).

21229429567883 is an equidigital number, since it uses as much as digits as its factorization.

21229429567883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209018880, while the sum is 68.

The spelling of 21229429567883 in words is "twenty-one trillion, two hundred twenty-nine billion, four hundred twenty-nine million, five hundred sixty-seven thousand, eight hundred eighty-three".