21222211011019 has 2 divisors, whose sum is σ = 21222211011020. Its totient is φ = 21222211011018.

The previous prime is 21222211011011. The next prime is 21222211011031. The reversal of 21222211011019 is 91011011222212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21222211011019 - 2³ = 21222211011011 is a prime.

It is a super-2 number, since 2×21222211011019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21222211010984 and 21222211011002.

It is not a weakly prime, because it can be changed into another prime (21222211011011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611105505509 + 10611105505510.

It is an arithmetic number, because the mean of its divisors is an integer number (10611105505510).

Almost surely, 2^{21222211011019} is an apocalyptic number.

21222211011019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222211011019 is an equidigital number, since it uses as much as digits as its factorization.

21222211011019 is an evil number, because the sum of its binary digits is even.

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

The spelling of 21222211011019 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred eleven million, eleven thousand, nineteen".