121000110121211 has 2 divisors, whose sum is σ = 121000110121212. Its totient is φ = 121000110121210.

The previous prime is 121000110121193. The next prime is 121000110121243. The reversal of 121000110121211 is 112121011000121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121000110121211 - 2¹⁸ = 121000109859067 is a prime.

It is a super-2 number, since 2×121000110121211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121000110121271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500055060605 + 60500055060606.

It is an arithmetic number, because the mean of its divisors is an integer number (60500055060606).

Almost surely, 2^{121000110121211} is an apocalyptic number.

121000110121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000110121211 is an equidigital number, since it uses as much as digits as its factorization.

121000110121211 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 14.

Adding to 121000110121211 its reverse (112121011000121), we get a palindrome (233121121121332).

The spelling of 121000110121211 in words is "one hundred twenty-one trillion, one hundred ten million, one hundred twenty-one thousand, two hundred eleven".