121101001112121 has 32 divisors (see below), whose sum is σ = 171149855551488. Its totient is φ = 75903287712000.

The previous prime is 121101001112101. The next prime is 121101001112159. The reversal of 121101001112121 is 121211100101121.

It is not a de Polignac number, because 121101001112121 - 2¹⁷ = 121101000981049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121101001112121.

It is not an unprimeable number, because it can be changed into a prime (121101001112101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2232208246 + ... + 2232262496.

It is an arithmetic number, because the mean of its divisors is an integer number (5348432985984).

Almost surely, 2^{121101001112121} is an apocalyptic number.

It is an amenable number.

121101001112121 is a deficient number, since it is larger than the sum of its proper divisors (50048854439367).

121101001112121 is a wasteful number, since it uses less digits than its factorization.

121101001112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100501.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121101001112121 its reverse (121211100101121), we get a palindrome (242312101213242).

The spelling of 121101001112121 in words is "one hundred twenty-one trillion, one hundred one billion, one million, one hundred twelve thousand, one hundred twenty-one".