22011000120121 has 2 divisors, whose sum is σ = 22011000120122. Its totient is φ = 22011000120120.

The previous prime is 22011000120119. The next prime is 22011000120191. The reversal of 22011000120121 is 12102100011022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20870826771600 + 1140173348521 = 4568460^2 + 1067789^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011000120121 - 2¹ = 22011000120119 is a prime.

Together with 22011000120119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22011000120101) 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, 11005500060060 + 11005500060061.

It is an arithmetic number, because the mean of its divisors is an integer number (11005500060061).

Almost surely, 2^{22011000120121} is an apocalyptic number.

It is an amenable number.

22011000120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011000120121 is an equidigital number, since it uses as much as digits as its factorization.

22011000120121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22011000120121 its reverse (12102100011022), we get a palindrome (34113100131143).

The spelling of 22011000120121 in words is "twenty-two trillion, eleven billion, one hundred twenty thousand, one hundred twenty-one".