2211142 has 4 divisors (see below), whose sum is σ = 3316716. Its totient is φ = 1105570.

The previous prime is 2211127. The next prime is 2211161. The reversal of 2211142 is 2411122.

It is a happy number.

2211142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552784 + ... + 552787.

It is an arithmetic number, because the mean of its divisors is an integer number (829179).

2^2211142 is an apocalyptic number.

2211142 is a deficient number, since it is larger than the sum of its proper divisors (1105574).

2211142 is a wasteful number, since it uses less digits than its factorization.

2211142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105573.

The product of its digits is 32, while the sum is 13.

The square root of 2211142 is about 1486.9909212904. The cubic root of 2211142 is about 130.2783385448.

Adding to 2211142 its reverse (2411122), we get a palindrome (4622264).

The spelling of 2211142 in words is "two million, two hundred eleven thousand, one hundred forty-two".