2221197 has 24 divisors (see below), whose sum is σ = 3383520. Its totient is φ = 1293600.

The previous prime is 2221187. The next prime is 2221217. The reversal of 2221197 is 7911222.

It is not a de Polignac number, because 2221197 - 2⁷ = 2221069 is a prime.

It is a super-2 number, since 2×2221197² = 9867432225618, which contains 22 as substring.

2221197 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10422 + ... + 10632.

It is an arithmetic number, because the mean of its divisors is an integer number (140980).

2^2221197 is an apocalyptic number.

It is an amenable number.

2221197 is a deficient number, since it is larger than the sum of its proper divisors (1162323).

2221197 is a wasteful number, since it uses less digits than its factorization.

2221197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 254 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 2221197 is about 1490.3680753425. The cubic root of 2221197 is about 130.4755169055.

The spelling of 2221197 in words is "two million, two hundred twenty-one thousand, one hundred ninety-seven".