1201121 has 4 divisors (see below), whose sum is σ = 1205952. Its totient is φ = 1196292.

The previous prime is 1201117. The next prime is 1201141. The reversal of 1201121 is 1211021.

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 1201121 - 2² = 1201117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201099 and 1201108.

It is not an unprimeable number, because it can be changed into a prime (1201111) 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, 2021 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (301488).

2^1201121 is an apocalyptic number.

It is an amenable number.

1201121 is a deficient number, since it is larger than the sum of its proper divisors (4831).

1201121 is an equidigital number, since it uses as much as digits as its factorization.

1201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1201121 is about 1095.9566597270. The cubic root of 1201121 is about 106.2989366269.

Adding to 1201121 its reverse (1211021), we get a palindrome (2412142).

The spelling of 1201121 in words is "one million, two hundred one thousand, one hundred twenty-one".