1111142214 has 72 divisors (see below), whose sum is σ = 2979383472. Its totient is φ = 293042880.

The previous prime is 1111142203. The next prime is 1111142251. The reversal of 1111142214 is 4122411111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4797 + ... + 47384.

It is an arithmetic number, because the mean of its divisors is an integer number (41380326).

Almost surely, 2^1111142214 is an apocalyptic number.

1111142214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111142214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489691736).

1111142214 is an abundant number, since it is smaller than the sum of its proper divisors (1868241258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111142214 is a wasteful number, since it uses less digits than its factorization.

1111142214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52222 (or 52206 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 1111142214 is about 33333.7998734018. The cubic root of 1111142214 is about 1035.7538329518.

Adding to 1111142214 its reverse (4122411111), we get a palindrome (5233553325).

The spelling of 1111142214 in words is "one billion, one hundred eleven million, one hundred forty-two thousand, two hundred fourteen".