20021012122219 has 8 divisors (see below), whose sum is σ = 20559011271008. Its totient is φ = 19489780258560.

The previous prime is 20021012122213. The next prime is 20021012122231. The reversal of 20021012122219 is 91222121012002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20021012122219 - 2¹³ = 20021012114027 is a prime.

It is a super-2 number, since 2×20021012122219² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20021012122193 and 20021012122202.

It is not an unprimeable number, because it can be changed into a prime (20021012122213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691815287 + ... + 1691827120.

It is an arithmetic number, because the mean of its divisors is an integer number (2569876408876).

Almost surely, 2^{20021012122219} is an apocalyptic number.

20021012122219 is a deficient number, since it is larger than the sum of its proper divisors (537999148789).

20021012122219 is an equidigital number, since it uses as much as digits as its factorization.

20021012122219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383642565.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 20021012122219 in words is "twenty trillion, twenty-one billion, twelve million, one hundred twenty-two thousand, two hundred nineteen".