20220022215209 has 2 divisors, whose sum is σ = 20220022215210. Its totient is φ = 20220022215208.

The previous prime is 20220022215167. The next prime is 20220022215223. The reversal of 20220022215209 is 90251222002202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18642775081984 + 1577247133225 = 4317728^2 + 1255885^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220022215209 - 2⁴⁰ = 19120510587433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20220022215409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110011107604 + 10110011107605.

It is an arithmetic number, because the mean of its divisors is an integer number (10110011107605).

Almost surely, 2^{20220022215209} is an apocalyptic number.

It is an amenable number.

20220022215209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220022215209 is an equidigital number, since it uses as much as digits as its factorization.

20220022215209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 20220022215209 in words is "twenty trillion, two hundred twenty billion, twenty-two million, two hundred fifteen thousand, two hundred nine".