2171226 has 8 divisors (see below), whose sum is σ = 4342464. Its totient is φ = 723740.

The previous prime is 2171219. The next prime is 2171231. The reversal of 2171226 is 6221712.

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

2171226 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180930 + ... + 180941.

It is an arithmetic number, because the mean of its divisors is an integer number (542808).

2^2171226 is an apocalyptic number.

2171226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2171226 is a wasteful number, since it uses less digits than its factorization.

2171226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361876.

The product of its digits is 336, while the sum is 21.

The square root of 2171226 is about 1473.5080590211. The cubic root of 2171226 is about 129.4896360772.

Adding to 2171226 its reverse (6221712), we get a palindrome (8392938).

The spelling of 2171226 in words is "two million, one hundred seventy-one thousand, two hundred twenty-six".