1122201110121 has 32 divisors (see below), whose sum is σ = 1891332726528. Its totient is φ = 575932135680.

The previous prime is 1122201110113. The next prime is 1122201110183. The reversal of 1122201110121 is 1210111022211.

It is a happy number.

It is not a de Polignac number, because 1122201110121 - 2³ = 1122201110113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122201110121.

It is not an unprimeable number, because it can be changed into a prime (1122201110101) 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, 55538910 + ... + 55559111.

It is an arithmetic number, because the mean of its divisors is an integer number (59104147704).

Almost surely, 2^{1122201110121} is an apocalyptic number.

It is an amenable number.

1122201110121 is a deficient number, since it is larger than the sum of its proper divisors (769131616407).

1122201110121 is a wasteful number, since it uses less digits than its factorization.

1122201110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111098081.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1122201110121 its reverse (1210111022211), we get a palindrome (2332312132332).

The spelling of 1122201110121 in words is "one trillion, one hundred twenty-two billion, two hundred one million, one hundred ten thousand, one hundred twenty-one".