21222212113019 has 2 divisors, whose sum is σ = 21222212113020. Its totient is φ = 21222212113018.

The previous prime is 21222212113013. The next prime is 21222212113031. The reversal of 21222212113019 is 91031121222212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21222212113019 - 2²⁰ = 21222211064443 is a prime.

It is a super-2 number, since 2×21222212113019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21222212112982 and 21222212113000.

It is not a weakly prime, because it can be changed into another prime (21222212113013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611106056509 + 10611106056510.

It is an arithmetic number, because the mean of its divisors is an integer number (10611106056510).

Almost surely, 2^{21222212113019} is an apocalyptic number.

21222212113019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222212113019 is an equidigital number, since it uses as much as digits as its factorization.

21222212113019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 21222212113019 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred twelve million, one hundred thirteen thousand, nineteen".