22201201320121 has 2 divisors, whose sum is σ = 22201201320122. Its totient is φ = 22201201320120.

The previous prime is 22201201320101. The next prime is 22201201320131. The reversal of 22201201320121 is 12102310210222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15927123174400 + 6274078145721 = 3990880^2 + 2504811^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201201320121 - 2¹⁷ = 22201201189049 is a prime.

It is not a weakly prime, because it can be changed into another prime (22201201320101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100600660060 + 11100600660061.

It is an arithmetic number, because the mean of its divisors is an integer number (11100600660061).

Almost surely, 2^{22201201320121} is an apocalyptic number.

It is an amenable number.

22201201320121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201201320121 is an equidigital number, since it uses as much as digits as its factorization.

22201201320121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22201201320121 its reverse (12102310210222), we get a palindrome (34303511530343).

The spelling of 22201201320121 in words is "twenty-two trillion, two hundred one billion, two hundred one million, three hundred twenty thousand, one hundred twenty-one".