2211542 has 16 divisors (see below), whose sum is σ = 3497472. Its totient is φ = 1046760.

The previous prime is 2211541. The next prime is 2211551. The reversal of 2211542 is 2451122.

It is a self number, because there is not a number n which added to its sum of digits gives 2211542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5843 + ... + 6209.

It is an arithmetic number, because the mean of its divisors is an integer number (218592).

2^2211542 is an apocalyptic number.

2211542 is a deficient number, since it is larger than the sum of its proper divisors (1285930).

2211542 is a wasteful number, since it uses less digits than its factorization.

2211542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523.

The product of its digits is 160, while the sum is 17.

The square root of 2211542 is about 1487.1254150205. The cubic root of 2211542 is about 130.2861939416.

Adding to 2211542 its reverse (2451122), we get a palindrome (4662664).

The spelling of 2211542 in words is "two million, two hundred eleven thousand, five hundred forty-two".