21229188192259 has 2 divisors, whose sum is σ = 21229188192260. Its totient is φ = 21229188192258.

The previous prime is 21229188192197. The next prime is 21229188192337. The reversal of 21229188192259 is 95229188192212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21229188192259 - 2⁷ = 21229188192131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21229188192197 and 21229188192206.

It is not a weakly prime, because it can be changed into another prime (21229188102259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10614594096129 + 10614594096130.

It is an arithmetic number, because the mean of its divisors is an integer number (10614594096130).

Almost surely, 2^{21229188192259} is an apocalyptic number.

21229188192259 is a deficient number, since it is larger than the sum of its proper divisors (1).

21229188192259 is an equidigital number, since it uses as much as digits as its factorization.

21229188192259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 61.

The spelling of 21229188192259 in words is "twenty-one trillion, two hundred twenty-nine billion, one hundred eighty-eight million, one hundred ninety-two thousand, two hundred fifty-nine".