121010112211 has 2 divisors, whose sum is σ = 121010112212. Its totient is φ = 121010112210.

The previous prime is 121010112203. The next prime is 121010112229. The reversal of 121010112211 is 112211010121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121010112211 - 2³ = 121010112203 is a prime.

It is a super-2 number, since 2×121010112211² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121010112191 and 121010112200.

It is not a weakly prime, because it can be changed into another prime (121010112281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505056105 + 60505056106.

It is an arithmetic number, because the mean of its divisors is an integer number (60505056106).

Almost surely, 2^121010112211 is an apocalyptic number.

121010112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010112211 is an equidigital number, since it uses as much as digits as its factorization.

121010112211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121010112211 its reverse (112211010121), we get a palindrome (233221122332).

The spelling of 121010112211 in words is "one hundred twenty-one billion, ten million, one hundred twelve thousand, two hundred eleven".