121201010000111 has 4 divisors (see below), whose sum is σ = 121360275454224. Its totient is φ = 121041744546000.

The previous prime is 121201010000107. The next prime is 121201010000117. The reversal of 121201010000111 is 111000010102121.

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

It is a cyclic number.

It is not a de Polignac number, because 121201010000111 - 2² = 121201010000107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121201010000092 and 121201010000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201010000117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79632725915 + ... + 79632727436.

It is an arithmetic number, because the mean of its divisors is an integer number (30340068863556).

Almost surely, 2^{121201010000111} is an apocalyptic number.

121201010000111 is a deficient number, since it is larger than the sum of its proper divisors (159265454113).

121201010000111 is an equidigital number, since it uses as much as digits as its factorization.

121201010000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159265454112.

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

Adding to 121201010000111 its reverse (111000010102121), we get a palindrome (232201020102232).

The spelling of 121201010000111 in words is "one hundred twenty-one trillion, two hundred one billion, ten million, one hundred eleven", and thus it is an aban number.