20222223420121 has 2 divisors, whose sum is σ = 20222223420122. Its totient is φ = 20222223420120.

The previous prime is 20222223420109. The next prime is 20222223420169. The reversal of 20222223420121 is 12102432222202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10453873230025 + 9768350190096 = 3233245^2 + 3125436^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222223420121 - 2³⁵ = 20187863681753 is a prime.

It is not a weakly prime, because it can be changed into another prime (20222223420821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111111710060 + 10111111710061.

It is an arithmetic number, because the mean of its divisors is an integer number (10111111710061).

Almost surely, 2^{20222223420121} is an apocalyptic number.

It is an amenable number.

20222223420121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222223420121 is an equidigital number, since it uses as much as digits as its factorization.

20222223420121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20222223420121 its reverse (12102432222202), we get a palindrome (32324655642323).

The spelling of 20222223420121 in words is "twenty trillion, two hundred twenty-two billion, two hundred twenty-three million, four hundred twenty thousand, one hundred twenty-one".