131212222301 has 2 divisors, whose sum is σ = 131212222302. Its totient is φ = 131212222300.

The previous prime is 131212222291. The next prime is 131212222321. The reversal of 131212222301 is 103222212131.

It is an a-pointer prime, because the next prime (131212222321) can be obtained adding 131212222301 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114968464900 + 16243757401 = 339070^2 + 127451^2 .

It is an emirp because it is prime and its reverse (103222212131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131212222301 - 2³⁰ = 130138480477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131212222321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606111150 + 65606111151.

It is an arithmetic number, because the mean of its divisors is an integer number (65606111151).

Almost surely, 2^131212222301 is an apocalyptic number.

It is an amenable number.

131212222301 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212222301 is an equidigital number, since it uses as much as digits as its factorization.

131212222301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131212222301 its reverse (103222212131), we get a palindrome (234434434432).

The spelling of 131212222301 in words is "one hundred thirty-one billion, two hundred twelve million, two hundred twenty-two thousand, three hundred one".