22110330121021 has 2 divisors, whose sum is σ = 22110330121022. Its totient is φ = 22110330121020.

The previous prime is 22110330120959. The next prime is 22110330121031. The reversal of 22110330121021 is 12012103301122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12863950623225 + 9246379497796 = 3586635^2 + 3040786^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110330121021 - 2²³ = 22110321732413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22110330121021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22110330121031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055165060510 + 11055165060511.

It is an arithmetic number, because the mean of its divisors is an integer number (11055165060511).

Almost surely, 2^{22110330121021} is an apocalyptic number.

It is an amenable number.

22110330121021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110330121021 is an equidigital number, since it uses as much as digits as its factorization.

22110330121021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 22110330121021 its reverse (12012103301122), we get a palindrome (34122433422143).

The spelling of 22110330121021 in words is "twenty-two trillion, one hundred ten billion, three hundred thirty million, one hundred twenty-one thousand, twenty-one".