2121195 has 8 divisors (see below), whose sum is σ = 3393936. Its totient is φ = 1131296.

The previous prime is 2121193. The next prime is 2121199. The reversal of 2121195 is 5911212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2121195 - 2¹ = 2121193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70692 + ... + 70721.

It is an arithmetic number, because the mean of its divisors is an integer number (424242).

2^2121195 is an apocalyptic number.

2121195 is a deficient number, since it is larger than the sum of its proper divisors (1272741).

2121195 is a wasteful number, since it uses less digits than its factorization.

2121195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141421.

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

The square root of 2121195 is about 1456.4322847287. The cubic root of 2121195 is about 128.4872985775.

It can be divided in two parts, 2121 and 195, that multiplied together give a triangular number (413595 = T₉₀₉).

The spelling of 2121195 in words is "two million, one hundred twenty-one thousand, one hundred ninety-five".