21222122020219 has 2 divisors, whose sum is σ = 21222122020220. Its totient is φ = 21222122020218.

The previous prime is 21222122020193. The next prime is 21222122020237. The reversal of 21222122020219 is 91202022122212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21222122020219 - 2⁷ = 21222122020091 is a prime.

It is a super-2 number, since 2×21222122020219² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21222122020019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611061010109 + 10611061010110.

It is an arithmetic number, because the mean of its divisors is an integer number (10611061010110).

Almost surely, 2^{21222122020219} is an apocalyptic number.

21222122020219 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222122020219 is an equidigital number, since it uses as much as digits as its factorization.

21222122020219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 21222122020219 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty thousand, two hundred nineteen".