2022020729 has 2 divisors, whose sum is σ = 2022020730. Its totient is φ = 2022020728.

The previous prime is 2022020669. The next prime is 2022020731. The reversal of 2022020729 is 9270202202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1459240000 + 562780729 = 38200^2 + 23723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022020729 is a prime.

Together with 2022020731, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2022020698 and 2022020707.

It is not a weakly prime, because it can be changed into another prime (2022020779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011010364 + 1011010365.

It is an arithmetic number, because the mean of its divisors is an integer number (1011010365).

Almost surely, 2^2022020729 is an apocalyptic number.

It is an amenable number.

2022020729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022020729 is an equidigital number, since it uses as much as digits as its factorization.

2022020729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2022020729 is about 44966.8848042646. The cubic root of 2022020729 is about 1264.5282454069.

The spelling of 2022020729 in words is "two billion, twenty-two million, twenty thousand, seven hundred twenty-nine".