121010000111 has 48 divisors (see below), whose sum is σ = 165493964160. Its totient is φ = 86978243520.

The previous prime is 121010000071. The next prime is 121010000143. The reversal of 121010000111 is 111000010121.

It is a happy number.

It is not a de Polignac number, because 121010000111 - 2⁶ = 121010000047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010000311) 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 47 ways as a sum of consecutive naturals, for example, 11339000 + ... + 11349666.

It is an arithmetic number, because the mean of its divisors is an integer number (3447790920).

Almost surely, 2^121010000111 is an apocalyptic number.

121010000111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121010000111 is a deficient number, since it is larger than the sum of its proper divisors (44483964049).

121010000111 is a wasteful number, since it uses less digits than its factorization.

121010000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12324 (or 12317 counting only the distinct ones).

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

Adding to 121010000111 its reverse (111000010121), we get a palindrome (232010010232).

The spelling of 121010000111 in words is "one hundred twenty-one billion, ten million, one hundred eleven", and thus it is an aban number.