2211111142 has 8 divisors (see below), whose sum is σ = 3325705056. Its totient is φ = 1102542792.

The previous prime is 2211111101. The next prime is 2211111143. The reversal of 2211111142 is 2411111122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211111143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505473 + ... + 1506940.

It is an arithmetic number, because the mean of its divisors is an integer number (415713132).

Almost surely, 2^2211111142 is an apocalyptic number.

2211111142 is a deficient number, since it is larger than the sum of its proper divisors (1114593914).

2211111142 is a wasteful number, since it uses less digits than its factorization.

2211111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012782.

The product of its digits is 32, while the sum is 16.

The square root of 2211111142 is about 47022.4535940012. The cubic root of 2211111142 is about 1302.7773250086. Note that the first 3 decimals are identical.

Adding to 2211111142 its reverse (2411111122), we get a palindrome (4622222264).

The spelling of 2211111142 in words is "two billion, two hundred eleven million, one hundred eleven thousand, one hundred forty-two".