2195121 has 12 divisors (see below), whose sum is σ = 2989392. Its totient is φ = 1432728.

The previous prime is 2195119. The next prime is 2195147. The reversal of 2195121 is 1215912.

It is not a de Polignac number, because 2195121 - 2¹ = 2195119 is a prime.

2195121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2195191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13386 + ... + 13548.

It is an arithmetic number, because the mean of its divisors is an integer number (249116).

2^2195121 is an apocalyptic number.

It is an amenable number.

2195121 is a deficient number, since it is larger than the sum of its proper divisors (794271).

2195121 is an equidigital number, since it uses as much as digits as its factorization.

2195121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 233 counting only the distinct ones).

The product of its digits is 180, while the sum is 21.

The square root of 2195121 is about 1481.5940739622. The cubic root of 2195121 is about 129.9629282854.

The spelling of 2195121 in words is "two million, one hundred ninety-five thousand, one hundred twenty-one".