22110101010121 has 2 divisors, whose sum is σ = 22110101010122. Its totient is φ = 22110101010120.

The previous prime is 22110101010091. The next prime is 22110101010143. The reversal of 22110101010121 is 12101010101122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21906190964025 + 203910046096 = 4680405^2 + 451564^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110101010121 - 2²¹ = 22110098912969 is a prime.

It is not a weakly prime, because it can be changed into another prime (22110101010161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055050505060 + 11055050505061.

It is an arithmetic number, because the mean of its divisors is an integer number (11055050505061).

Almost surely, 2^{22110101010121} is an apocalyptic number.

It is an amenable number.

22110101010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110101010121 is an equidigital number, since it uses as much as digits as its factorization.

22110101010121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 22110101010121 its reverse (12101010101122), we get a palindrome (34211111111243).

The spelling of 22110101010121 in words is "twenty-two trillion, one hundred ten billion, one hundred one million, ten thousand, one hundred twenty-one".