121002100211 has 2 divisors, whose sum is σ = 121002100212. Its totient is φ = 121002100210.

The previous prime is 121002100189. The next prime is 121002100213. The reversal of 121002100211 is 112001200121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121002100211 - 2³⁰ = 119928358387 is a prime.

Together with 121002100213, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121002100192 and 121002100201.

It is not a weakly prime, because it can be changed into another prime (121002100213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501050105 + 60501050106.

It is an arithmetic number, because the mean of its divisors is an integer number (60501050106).

Almost surely, 2^121002100211 is an apocalyptic number.

121002100211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002100211 is an equidigital number, since it uses as much as digits as its factorization.

121002100211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121002100211 its reverse (112001200121), we get a palindrome (233003300332).

The spelling of 121002100211 in words is "one hundred twenty-one billion, two million, one hundred thousand, two hundred eleven".