121121201112101 has 8 divisors (see below), whose sum is σ = 126401668508544. Its totient is φ = 115841927733840.

The previous prime is 121121201112071. The next prime is 121121201112139. The reversal of 121121201112101 is 101211102121121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121121201112101 - 2¹⁰ = 121121201111077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121121201112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121201112001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298297241 + ... + 298703006.

It is an arithmetic number, because the mean of its divisors is an integer number (15800208563568).

Almost surely, 2^{121121201112101} is an apocalyptic number.

It is an amenable number.

121121201112101 is a deficient number, since it is larger than the sum of its proper divisors (5280467396443).

121121201112101 is an equidigital number, since it uses as much as digits as its factorization.

121121201112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597009091.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121121201112101 its reverse (101211102121121), we get a palindrome (222332303233222).

The spelling of 121121201112101 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred one million, one hundred twelve thousand, one hundred one".