121100222201 has 32 divisors (see below), whose sum is σ = 144264360960. Its totient is φ = 99520344000.

The previous prime is 121100222183. The next prime is 121100222213. The reversal of 121100222201 is 102222001121.

It is not a de Polignac number, because 121100222201 - 2²⁶ = 121033113337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121100222261) 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, 2773106 + ... + 2816436.

It is an arithmetic number, because the mean of its divisors is an integer number (4508261280).

Almost surely, 2^121100222201 is an apocalyptic number.

It is an amenable number.

121100222201 is a deficient number, since it is larger than the sum of its proper divisors (23164138759).

121100222201 is a wasteful number, since it uses less digits than its factorization.

121100222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43565.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121100222201 its reverse (102222001121), we get a palindrome (223322223322).

The spelling of 121100222201 in words is "one hundred twenty-one billion, one hundred million, two hundred twenty-two thousand, two hundred one".