121000100011211 has 2 divisors, whose sum is σ = 121000100011212. Its totient is φ = 121000100011210.

The previous prime is 121000100011181. The next prime is 121000100011261. The reversal of 121000100011211 is 112110001000121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121000100011211 - 2¹⁰ = 121000100010187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121000100011192 and 121000100011201.

It is not a weakly prime, because it can be changed into another prime (121000100011261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500050005605 + 60500050005606.

It is an arithmetic number, because the mean of its divisors is an integer number (60500050005606).

Almost surely, 2^{121000100011211} is an apocalyptic number.

121000100011211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000100011211 is an equidigital number, since it uses as much as digits as its factorization.

121000100011211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121000100011211 its reverse (112110001000121), we get a palindrome (233110101011332).

The spelling of 121000100011211 in words is "one hundred twenty-one trillion, one hundred million, eleven thousand, two hundred eleven".