21020222020219 has 2 divisors, whose sum is σ = 21020222020220. Its totient is φ = 21020222020218.

The previous prime is 21020222020177. The next prime is 21020222020223. The reversal of 21020222020219 is 91202022202012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21020222020219 is a prime.

It is a super-3 number, since 3×21020222020219³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 21020222020193 and 21020222020202.

It is not a weakly prime, because it can be changed into another prime (21020222020229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510111010109 + 10510111010110.

It is an arithmetic number, because the mean of its divisors is an integer number (10510111010110).

Almost surely, 2^{21020222020219} is an apocalyptic number.

21020222020219 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020222020219 is an equidigital number, since it uses as much as digits as its factorization.

21020222020219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 21020222020219 in words is "twenty-one trillion, twenty billion, two hundred twenty-two million, twenty thousand, two hundred nineteen".