121102211321213 has 2 divisors, whose sum is σ = 121102211321214. Its totient is φ = 121102211321212.

The previous prime is 121102211321197. The next prime is 121102211321237. The reversal of 121102211321213 is 312123112201121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117924787425124 + 3177423896089 = 10859318^2 + 1782533^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102211321213 - 2⁴ = 121102211321197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121102211327213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551105660606 + 60551105660607.

It is an arithmetic number, because the mean of its divisors is an integer number (60551105660607).

Almost surely, 2^{121102211321213} is an apocalyptic number.

It is an amenable number.

121102211321213 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102211321213 is an equidigital number, since it uses as much as digits as its factorization.

121102211321213 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 23.

Adding to 121102211321213 its reverse (312123112201121), we get a palindrome (433225323522334).

The spelling of 121102211321213 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred eleven million, three hundred twenty-one thousand, two hundred thirteen".