121121222001101 has 16 divisors (see below), whose sum is σ = 138440797472640. Its totient is φ = 103805783426880.

The previous prime is 121121222001001. The next prime is 121121222001163. The reversal of 121121222001101 is 101100222121121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121121222001101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121121222001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121222001181) 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, 3580379255 + ... + 3580413083.

It is an arithmetic number, because the mean of its divisors is an integer number (8652549842040).

Almost surely, 2^{121121222001101} is an apocalyptic number.

It is an amenable number.

121121222001101 is a deficient number, since it is larger than the sum of its proper divisors (17319575471539).

121121222001101 is a wasteful number, since it uses less digits than its factorization.

121121222001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79844.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121121222001101 its reverse (101100222121121), we get a palindrome (222221444122222).

The spelling of 121121222001101 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred twenty-two million, one thousand, one hundred one".