21122220011219 has 2 divisors, whose sum is σ = 21122220011220. Its totient is φ = 21122220011218.

The previous prime is 21122220011149. The next prime is 21122220011261. The reversal of 21122220011219 is 91211002222112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21122220011219 - 2²⁸ = 21121951575763 is a prime.

It is a super-2 number, since 2×21122220011219² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21122220011119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561110005609 + 10561110005610.

It is an arithmetic number, because the mean of its divisors is an integer number (10561110005610).

Almost surely, 2^{21122220011219} is an apocalyptic number.

21122220011219 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122220011219 is an equidigital number, since it uses as much as digits as its factorization.

21122220011219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 21122220011219 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred twenty million, eleven thousand, two hundred nineteen".