20522440229 has 2 divisors, whose sum is σ = 20522440230. Its totient is φ = 20522440228.

The previous prime is 20522440223. The next prime is 20522440241. The reversal of 20522440229 is 92204422502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18470169025 + 2052271204 = 135905^2 + 45302^2 .

It is a cyclic number.

It is not a de Polignac number, because 20522440229 - 2¹² = 20522436133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20522440195 and 20522440204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20522440223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10261220114 + 10261220115.

It is an arithmetic number, because the mean of its divisors is an integer number (10261220115).

Almost surely, 2^20522440229 is an apocalyptic number.

It is an amenable number.

20522440229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20522440229 is an equidigital number, since it uses as much as digits as its factorization.

20522440229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 20522440229 in words is "twenty billion, five hundred twenty-two million, four hundred forty thousand, two hundred twenty-nine".