20021020120219 has 2 divisors, whose sum is σ = 20021020120220. Its totient is φ = 20021020120218.

The previous prime is 20021020120183. The next prime is 20021020120223. The reversal of 20021020120219 is 91202102012002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021020120219 - 2⁷ = 20021020120091 is a prime.

It is a super-2 number, since 2×20021020120219² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20021020120219.

It is not a weakly prime, because it can be changed into another prime (20021020120229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010510060109 + 10010510060110.

It is an arithmetic number, because the mean of its divisors is an integer number (10010510060110).

Almost surely, 2^{20021020120219} is an apocalyptic number.

20021020120219 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021020120219 is an equidigital number, since it uses as much as digits as its factorization.

20021020120219 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 22.

The spelling of 20021020120219 in words is "twenty trillion, twenty-one billion, twenty million, one hundred twenty thousand, two hundred nineteen".