210122211973 has 2 divisors, whose sum is σ = 210122211974. Its totient is φ = 210122211972.

The previous prime is 210122211931. The next prime is 210122212007. The reversal of 210122211973 is 379112221012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141521173249 + 68601038724 = 376193^2 + 261918^2 .

It is a cyclic number.

It is not a de Polignac number, because 210122211973 - 2¹⁷ = 210122080901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210122221973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061105986 + 105061105987.

It is an arithmetic number, because the mean of its divisors is an integer number (105061105987).

Almost surely, 2^210122211973 is an apocalyptic number.

It is an amenable number.

210122211973 is a deficient number, since it is larger than the sum of its proper divisors (1).

210122211973 is an equidigital number, since it uses as much as digits as its factorization.

210122211973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 210122211973 its reverse (379112221012), we get a palindrome (589234432985).

The spelling of 210122211973 in words is "two hundred ten billion, one hundred twenty-two million, two hundred eleven thousand, nine hundred seventy-three".