201322122997 has 2 divisors, whose sum is σ = 201322122998. Its totient is φ = 201322122996.

The previous prime is 201322122979. The next prime is 201322123031. The reversal of 201322122997 is 799221223102.

Together with previous prime (201322122979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159687352881 + 41634770116 = 399609^2 + 204046^2 .

It is a cyclic number.

It is not a de Polignac number, because 201322122997 - 2³⁵ = 166962384629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201322122977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100661061498 + 100661061499.

It is an arithmetic number, because the mean of its divisors is an integer number (100661061499).

Almost surely, 2^201322122997 is an apocalyptic number.

It is an amenable number.

201322122997 is a deficient number, since it is larger than the sum of its proper divisors (1).

201322122997 is an equidigital number, since it uses as much as digits as its factorization.

201322122997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 201322122997 in words is "two hundred one billion, three hundred twenty-two million, one hundred twenty-two thousand, nine hundred ninety-seven".