1212210102113 has 2 divisors, whose sum is σ = 1212210102114. Its totient is φ = 1212210102112.

The previous prime is 1212210102109. The next prime is 1212210102143. The reversal of 1212210102113 is 3112010122121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 829899136144 + 382310965969 = 910988^2 + 618313^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212210102113 - 2² = 1212210102109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212210102091 and 1212210102100.

It is not a weakly prime, because it can be changed into another prime (1212210102143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105051056 + 606105051057.

It is an arithmetic number, because the mean of its divisors is an integer number (606105051057).

Almost surely, 2^{1212210102113} is an apocalyptic number.

It is an amenable number.

1212210102113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210102113 is an equidigital number, since it uses as much as digits as its factorization.

1212210102113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1212210102113 its reverse (3112010122121), we get a palindrome (4324220224234).

The spelling of 1212210102113 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred two thousand, one hundred thirteen".