202220021243 has 2 divisors, whose sum is σ = 202220021244. Its totient is φ = 202220021242.

The previous prime is 202220021207. The next prime is 202220021293. The reversal of 202220021243 is 342120022202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202220021243 - 2¹⁴ = 202220004859 is a prime.

It is not a weakly prime, because it can be changed into another prime (202220021293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110010621 + 101110010622.

It is an arithmetic number, because the mean of its divisors is an integer number (101110010622).

Almost surely, 2^202220021243 is an apocalyptic number.

202220021243 is a deficient number, since it is larger than the sum of its proper divisors (1).

202220021243 is an equidigital number, since it uses as much as digits as its factorization.

202220021243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 202220021243 its reverse (342120022202), we get a palindrome (544340043445).

The spelling of 202220021243 in words is "two hundred two billion, two hundred twenty million, twenty-one thousand, two hundred forty-three".