2021122319 has 2 divisors, whose sum is σ = 2021122320. Its totient is φ = 2021122318.

The previous prime is 2021122297. The next prime is 2021122331. The reversal of 2021122319 is 9132211202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021122319 - 2⁸ = 2021122063 is a prime.

It is a super-2 number, since 2×2021122319² = 8169870856719875522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021122294 and 2021122303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021122399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010561159 + 1010561160.

It is an arithmetic number, because the mean of its divisors is an integer number (1010561160).

Almost surely, 2^2021122319 is an apocalyptic number.

2021122319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021122319 is an equidigital number, since it uses as much as digits as its factorization.

2021122319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2021122319 is about 44956.8940097067. The cubic root of 2021122319 is about 1264.3409355700.

The spelling of 2021122319 in words is "two billion, twenty-one million, one hundred twenty-two thousand, three hundred nineteen".