2172201 has 8 divisors (see below), whose sum is σ = 2989824. Its totient is φ = 1401360.

The previous prime is 2172197. The next prime is 2172211. The reversal of 2172201 is 1022712.

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

It is not a de Polignac number, because 2172201 - 2² = 2172197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2172211) 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, 11586 + ... + 11771.

It is an arithmetic number, because the mean of its divisors is an integer number (373728).

2^2172201 is an apocalyptic number.

It is an amenable number.

2172201 is a deficient number, since it is larger than the sum of its proper divisors (817623).

2172201 is a wasteful number, since it uses less digits than its factorization.

2172201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23391.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 2172201 is about 1473.8388650053. The cubic root of 2172201 is about 129.5090158350.

Adding to 2172201 its reverse (1022712), we get a palindrome (3194913).

The spelling of 2172201 in words is "two million, one hundred seventy-two thousand, two hundred one".