21229122703 has 2 divisors, whose sum is σ = 21229122704. Its totient is φ = 21229122702.

The previous prime is 21229122671. The next prime is 21229122713. The reversal of 21229122703 is 30722192212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21229122703 - 2⁵ = 21229122671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21229122713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10614561351 + 10614561352.

It is an arithmetic number, because the mean of its divisors is an integer number (10614561352).

Almost surely, 2^21229122703 is an apocalyptic number.

21229122703 is a deficient number, since it is larger than the sum of its proper divisors (1).

21229122703 is an equidigital number, since it uses as much as digits as its factorization.

21229122703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 21229122703 in words is "twenty-one billion, two hundred twenty-nine million, one hundred twenty-two thousand, seven hundred three".