1121220112201 has 4 divisors (see below), whose sum is σ = 1281394413952. Its totient is φ = 961045810452.

The previous prime is 1121220112163. The next prime is 1121220112211. The reversal of 1121220112201 is 1022110221211.

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 not a de Polignac number, because 1121220112201 - 2⁷ = 1121220112073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121220112211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80087150865 + ... + 80087150878.

It is an arithmetic number, because the mean of its divisors is an integer number (320348603488).

Almost surely, 2^{1121220112201} is an apocalyptic number.

It is an amenable number.

1121220112201 is a deficient number, since it is larger than the sum of its proper divisors (160174301751).

1121220112201 is an equidigital number, since it uses as much as digits as its factorization.

1121220112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160174301750.

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

Adding to 1121220112201 its reverse (1022110221211), we get a palindrome (2143330333412).

The spelling of 1121220112201 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twelve thousand, two hundred one".