221120021219 has 2 divisors, whose sum is σ = 221120021220. Its totient is φ = 221120021218.

The previous prime is 221120021191. The next prime is 221120021233. The reversal of 221120021219 is 912120021122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221120021219 - 2²⁰ = 221118972643 is a prime.

It is a super-2 number, since 2×221120021219² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221120021194 and 221120021203.

It is not a weakly prime, because it can be changed into another prime (221120021719) 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, 110560010609 + 110560010610.

It is an arithmetic number, because the mean of its divisors is an integer number (110560010610).

Almost surely, 2^221120021219 is an apocalyptic number.

221120021219 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120021219 is an equidigital number, since it uses as much as digits as its factorization.

221120021219 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 23.

The spelling of 221120021219 in words is "two hundred twenty-one billion, one hundred twenty million, twenty-one thousand, two hundred nineteen".