121102111000111 has 16 divisors (see below), whose sum is σ = 125793117303808. Its totient is φ = 116460335908800.

The previous prime is 121102111000103. The next prime is 121102111000121. The reversal of 121102111000111 is 111000111201121.

It is a cyclic number.

It is not a de Polignac number, because 121102111000111 - 2³ = 121102111000103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121102111000091 and 121102111000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102111000121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34595716 + ... + 37935046.

It is an arithmetic number, because the mean of its divisors is an integer number (7862069831488).

Almost surely, 2^{121102111000111} is an apocalyptic number.

121102111000111 is a deficient number, since it is larger than the sum of its proper divisors (4691006303697).

121102111000111 is a wasteful number, since it uses less digits than its factorization.

121102111000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346702.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 121102111000111 its reverse (111000111201121), we get a palindrome (232102222201232).

The spelling of 121102111000111 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred eleven million, one hundred eleven", and thus it is an aban number.