121100221100201 has 32 divisors (see below), whose sum is σ = 147699379480320. Its totient is φ = 96984539136000.

The previous prime is 121100221100179. The next prime is 121100221100311. The reversal of 121100221100201 is 102001122001121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121100221100201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121100221100501) 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, 14086880 + ... + 20991441.

It is an arithmetic number, because the mean of its divisors is an integer number (4615605608760).

Almost surely, 2^{121100221100201} is an apocalyptic number.

It is an amenable number.

121100221100201 is a deficient number, since it is larger than the sum of its proper divisors (26599158380119).

121100221100201 is a wasteful number, since it uses less digits than its factorization.

121100221100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35078705.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121100221100201 its reverse (102001122001121), we get a palindrome (223101343101322).

The spelling of 121100221100201 in words is "one hundred twenty-one trillion, one hundred billion, two hundred twenty-one million, one hundred thousand, two hundred one".