201322057 has 2 divisors, whose sum is σ = 201322058. Its totient is φ = 201322056.

The previous prime is 201322039. The next prime is 201322067. The reversal of 201322057 is 750223102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128799801 + 72522256 = 11349^2 + 8516^2 .

It is a cyclic number.

It is not a de Polignac number, because 201322057 - 2¹⁵ = 201289289 is a prime.

It is a super-2 number, since 2×201322057² = 81061141269422498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201322067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100661028 + 100661029.

It is an arithmetic number, because the mean of its divisors is an integer number (100661029).

Almost surely, 2^201322057 is an apocalyptic number.

It is an amenable number.

201322057 is a deficient number, since it is larger than the sum of its proper divisors (1).

201322057 is an equidigital number, since it uses as much as digits as its factorization.

201322057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 201322057 is about 14188.8004073635. The cubic root of 201322057 is about 586.0892914525.

Adding to 201322057 its reverse (750223102), we get a palindrome (951545159).

The spelling of 201322057 in words is "two hundred one million, three hundred twenty-two thousand, fifty-seven".