22243403230121 has 2 divisors, whose sum is σ = 22243403230122. Its totient is φ = 22243403230120.

The previous prime is 22243403230099. The next prime is 22243403230163. The reversal of 22243403230121 is 12103230434222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19067754488896 + 3175648741225 = 4366664^2 + 1782035^2 .

It is a cyclic number.

It is not a de Polignac number, because 22243403230121 - 2¹⁸ = 22243402967977 is a prime.

It is not a weakly prime, because it can be changed into another prime (22243403232121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11121701615060 + 11121701615061.

It is an arithmetic number, because the mean of its divisors is an integer number (11121701615061).

Almost surely, 2^{22243403230121} is an apocalyptic number.

It is an amenable number.

22243403230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22243403230121 is an equidigital number, since it uses as much as digits as its factorization.

22243403230121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 22243403230121 its reverse (12103230434222), we get a palindrome (34346633664343).

The spelling of 22243403230121 in words is "twenty-two trillion, two hundred forty-three billion, four hundred three million, two hundred thirty thousand, one hundred twenty-one".