210122321971 has 2 divisors, whose sum is σ = 210122321972. Its totient is φ = 210122321970.

The previous prime is 210122321957. The next prime is 210122321987. The reversal of 210122321971 is 179123221012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210122321971 - 2⁵ = 210122321939 is a prime.

It is not a weakly prime, because it can be changed into another prime (210122321951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061160985 + 105061160986.

It is an arithmetic number, because the mean of its divisors is an integer number (105061160986).

Almost surely, 2^210122321971 is an apocalyptic number.

210122321971 is a deficient number, since it is larger than the sum of its proper divisors (1).

210122321971 is an equidigital number, since it uses as much as digits as its factorization.

210122321971 is an odious number, because the sum of its binary digits is odd.

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

Adding to 210122321971 its reverse (179123221012), we get a palindrome (389245542983).

The spelling of 210122321971 in words is "two hundred ten billion, one hundred twenty-two million, three hundred twenty-one thousand, nine hundred seventy-one".