21202211211019 has 2 divisors, whose sum is σ = 21202211211020. Its totient is φ = 21202211211018.

The previous prime is 21202211211017. The next prime is 21202211211119. The reversal of 21202211211019 is 91011211220212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21202211211019 - 2¹ = 21202211211017 is a prime.

It is a super-2 number, since 2×21202211211019² (a number of 27 digits) contains 22 as substring.

Together with 21202211211017, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 21202211210984 and 21202211211002.

It is not a weakly prime, because it can be changed into another prime (21202211211017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601105605509 + 10601105605510.

It is an arithmetic number, because the mean of its divisors is an integer number (10601105605510).

Almost surely, 2^{21202211211019} is an apocalyptic number.

21202211211019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202211211019 is an equidigital number, since it uses as much as digits as its factorization.

21202211211019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 21202211211019 in words is "twenty-one trillion, two hundred two billion, two hundred eleven million, two hundred eleven thousand, nineteen".