131212220212211 has 2 divisors, whose sum is σ = 131212220212212. Its totient is φ = 131212220212210.

The previous prime is 131212220212207. The next prime is 131212220212231. The reversal of 131212220212211 is 112212022212131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131212220212211 - 2² = 131212220212207 is a prime.

It is not a weakly prime, because it can be changed into another prime (131212220212231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606110106105 + 65606110106106.

It is an arithmetic number, because the mean of its divisors is an integer number (65606110106106).

Almost surely, 2^{131212220212211} is an apocalyptic number.

131212220212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212220212211 is an equidigital number, since it uses as much as digits as its factorization.

131212220212211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 131212220212211 its reverse (112212022212131), we get a palindrome (243424242424342).

The spelling of 131212220212211 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred twenty million, two hundred twelve thousand, two hundred eleven".