10000121111 has 8 divisors (see below), whose sum is σ = 10124298960. Its totient is φ = 9876569472.

The previous prime is 10000121099. The next prime is 10000121147. The reversal of 10000121111 is 11112100001.

It is a happy number.

10000121111 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 a de Polignac number, because none of the positive numbers 2^k-10000121111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000121311) 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, 124376 + ... + 188333.

It is an arithmetic number, because the mean of its divisors is an integer number (1265537370).

Almost surely, 2^10000121111 is an apocalyptic number.

10000121111 is a deficient number, since it is larger than the sum of its proper divisors (124177849).

10000121111 is a wasteful number, since it uses less digits than its factorization.

10000121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313105.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10000121111 its reverse (11112100001), we get a palindrome (21112221112).

The spelling of 10000121111 in words is "ten billion, one hundred twenty-one thousand, one hundred eleven".