210022211110121 has 2 divisors, whose sum is σ = 210022211110122. Its totient is φ = 210022211110120.

The previous prime is 210022211110091. The next prime is 210022211110123. The reversal of 210022211110121 is 121011112220012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126915996490000 + 83106214620121 = 11265700^2 + 9116261^2 .

It is a cyclic number.

It is not a de Polignac number, because 210022211110121 - 2³⁰ = 210021137368297 is a prime.

Together with 210022211110123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210022211110121.

It is not a weakly prime, because it can be changed into another prime (210022211110123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105011105555060 + 105011105555061.

It is an arithmetic number, because the mean of its divisors is an integer number (105011105555061).

Almost surely, 2^{210022211110121} is an apocalyptic number.

It is an amenable number.

210022211110121 is a deficient number, since it is larger than the sum of its proper divisors (1).

210022211110121 is an equidigital number, since it uses as much as digits as its factorization.

210022211110121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210022211110121 its reverse (121011112220012), we get a palindrome (331033323330133).

The spelling of 210022211110121 in words is "two hundred ten trillion, twenty-two billion, two hundred eleven million, one hundred ten thousand, one hundred twenty-one".