121122201121 has 4 divisors (see below), whose sum is σ = 121246941744. Its totient is φ = 120997460500.

The previous prime is 121122201119. The next prime is 121122201127. The reversal of 121122201121 is 121102221121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121122201121 - 2¹ = 121122201119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121122201095 and 121122201104.

It is not an unprimeable number, because it can be changed into a prime (121122201127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62368855 + ... + 62370796.

It is an arithmetic number, because the mean of its divisors is an integer number (30311735436).

Almost surely, 2^121122201121 is an apocalyptic number.

It is an amenable number.

121122201121 is a deficient number, since it is larger than the sum of its proper divisors (124740623).

121122201121 is an equidigital number, since it uses as much as digits as its factorization.

121122201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124740622.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121122201121 its reverse (121102221121), we get a palindrome (242224422242).

The spelling of 121122201121 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred one thousand, one hundred twenty-one".