121113331111211 has 2 divisors, whose sum is σ = 121113331111212. Its totient is φ = 121113331111210.

The previous prime is 121113331111207. The next prime is 121113331111303. The reversal of 121113331111211 is 112111133311121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121113331111211 - 2² = 121113331111207 is a prime.

It is not a weakly prime, because it can be changed into another prime (121113331117211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556665555605 + 60556665555606.

It is an arithmetic number, because the mean of its divisors is an integer number (60556665555606).

Almost surely, 2^{121113331111211} is an apocalyptic number.

121113331111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121113331111211 is an equidigital number, since it uses as much as digits as its factorization.

121113331111211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 23.

Adding to 121113331111211 its reverse (112111133311121), we get a palindrome (233224464422332).

The spelling of 121113331111211 in words is "one hundred twenty-one trillion, one hundred thirteen billion, three hundred thirty-one million, one hundred eleven thousand, two hundred eleven".