201213223097 has 2 divisors, whose sum is σ = 201213223098. Its totient is φ = 201213223096.

The previous prime is 201213223073. The next prime is 201213223117. The reversal of 201213223097 is 790322312102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189343338496 + 11869884601 = 435136^2 + 108949^2 .

It is a cyclic number.

It is not a de Polignac number, because 201213223097 - 2¹⁸ = 201212960953 is a prime.

It is a super-2 number, since 2×201213223097² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201213223397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606611548 + 100606611549.

It is an arithmetic number, because the mean of its divisors is an integer number (100606611549).

Almost surely, 2^201213223097 is an apocalyptic number.

It is an amenable number.

201213223097 is a deficient number, since it is larger than the sum of its proper divisors (1).

201213223097 is an equidigital number, since it uses as much as digits as its factorization.

201213223097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 201213223097 its reverse (790322312102), we get a palindrome (991535535199).

The spelling of 201213223097 in words is "two hundred one billion, two hundred thirteen million, two hundred twenty-three thousand, ninety-seven".