1131222414 has 64 divisors (see below), whose sum is σ = 2702278656. Its totient is φ = 308949984.

The previous prime is 1131222413. The next prime is 1131222419. The reversal of 1131222414 is 4142221311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131222413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78219 + ... + 91545.

It is an arithmetic number, because the mean of its divisors is an integer number (42223104).

Almost surely, 2^1131222414 is an apocalyptic number.

1131222414 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 1131222414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351139328).

1131222414 is an abundant number, since it is smaller than the sum of its proper divisors (1571056242).

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

1131222414 is a wasteful number, since it uses less digits than its factorization.

1131222414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13429.

The product of its digits is 384, while the sum is 21.

The square root of 1131222414 is about 33633.6500249378. The cubic root of 1131222414 is about 1041.9558897138.

Adding to 1131222414 its reverse (4142221311), we get a palindrome (5273443725).

The spelling of 1131222414 in words is "one billion, one hundred thirty-one million, two hundred twenty-two thousand, four hundred fourteen".