10121012111 has 8 divisors (see below), whose sum is σ = 11603362080. Its totient is φ = 8647784928.

The previous prime is 10121012071. The next prime is 10121012113. The reversal of 10121012111 is 11121012101.

10121012111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10121012111 - 2⁶ = 10121012047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121012092 and 10121012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121012113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2278316 + ... + 2282753.

It is an arithmetic number, because the mean of its divisors is an integer number (1450420260).

Almost surely, 2^10121012111 is an apocalyptic number.

10121012111 is a deficient number, since it is larger than the sum of its proper divisors (1482349969).

10121012111 is an equidigital number, since it uses as much as digits as its factorization.

10121012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561393.

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

Adding to 10121012111 its reverse (11121012101), we get a palindrome (21242024212).

The spelling of 10121012111 in words is "ten billion, one hundred twenty-one million, twelve thousand, one hundred eleven".