121110001001121 has 16 divisors (see below), whose sum is σ = 176167146481920. Its totient is φ = 73397023512720.

The previous prime is 121110001001107. The next prime is 121110001001123. The reversal of 121110001001121 is 121100100011121.

It is not a de Polignac number, because 121110001001121 - 2¹⁵ = 121110000968353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121110001001097 and 121110001001106.

It is not an unprimeable number, because it can be changed into a prime (121110001001123) 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, 73601275 + ... + 75228768.

It is an arithmetic number, because the mean of its divisors is an integer number (11010446655120).

Almost surely, 2^{121110001001121} is an apocalyptic number.

121110001001121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121110001001121 is a deficient number, since it is larger than the sum of its proper divisors (55057145480799).

121110001001121 is a wasteful number, since it uses less digits than its factorization.

121110001001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148854716.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 121110001001121 its reverse (121100100011121), we get a palindrome (242210101012242).

The spelling of 121110001001121 in words is "one hundred twenty-one trillion, one hundred ten billion, one million, one thousand, one hundred twenty-one".