2211399 has 6 divisors (see below), whose sum is σ = 3194256. Its totient is φ = 1474260.

The previous prime is 2211373. The next prime is 2211409. The reversal of 2211399 is 9931122.

It is not a de Polignac number, because 2211399 - 2⁵ = 2211367 is a prime.

2211399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122847 + ... + 122864.

It is an arithmetic number, because the mean of its divisors is an integer number (532376).

2^2211399 is an apocalyptic number.

2211399 is a deficient number, since it is larger than the sum of its proper divisors (982857).

2211399 is a wasteful number, since it uses less digits than its factorization.

2211399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245717 (or 245714 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 2211399 is about 1487.0773349090. The cubic root of 2211399 is about 130.2833857460.

The spelling of 2211399 in words is "two million, two hundred eleven thousand, three hundred ninety-nine".