121010112010211 has 4 divisors (see below), whose sum is σ = 121077828918552. Its totient is φ = 120942395101872.

The previous prime is 121010112010163. The next prime is 121010112010217. The reversal of 121010112010211 is 112010211010121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010112010211 is a prime.

It is a super-3 number, since 3×121010112010211³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010112010217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33858451490 + ... + 33858455063.

It is an arithmetic number, because the mean of its divisors is an integer number (30269457229638).

Almost surely, 2^{121010112010211} is an apocalyptic number.

121010112010211 is a deficient number, since it is larger than the sum of its proper divisors (67716908341).

121010112010211 is an equidigital number, since it uses as much as digits as its factorization.

121010112010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67716908340.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121010112010211 its reverse (112010211010121), we get a palindrome (233020323020332).

The spelling of 121010112010211 in words is "one hundred twenty-one trillion, ten billion, one hundred twelve million, ten thousand, two hundred eleven".