22020220249 has 2 divisors, whose sum is σ = 22020220250. Its totient is φ = 22020220248.

The previous prime is 22020220177. The next prime is 22020220253. The reversal of 22020220249 is 94202202022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15124080400 + 6896139849 = 122980^2 + 83043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22020220249 is a prime.

It is not a weakly prime, because it can be changed into another prime (22020220279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010110124 + 11010110125.

It is an arithmetic number, because the mean of its divisors is an integer number (11010110125).

Almost surely, 2^22020220249 is an apocalyptic number.

It is an amenable number.

22020220249 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020220249 is an equidigital number, since it uses as much as digits as its factorization.

22020220249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 22020220249 in words is "twenty-two billion, twenty million, two hundred twenty thousand, two hundred forty-nine".