1115231022 has 12 divisors (see below), whose sum is σ = 2416333920. Its totient is φ = 371743668.

The previous prime is 1115231017. The next prime is 1115231027. The reversal of 1115231022 is 2201325111.

1115231022 is a `hidden beast` number, since 111 + 523 + 10 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (1115231017) and next prime (1115231027).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 61957279 = 1115231022 / (1 + 1 + 1 + 5 + 2 + 3 + 1 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1115230986 and 1115231004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115231027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30978622 + ... + 30978657.

It is an arithmetic number, because the mean of its divisors is an integer number (201361160).

Almost surely, 2^1115231022 is an apocalyptic number.

1115231022 is an abundant number, since it is smaller than the sum of its proper divisors (1301102898).

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

1115231022 is a wasteful number, since it uses less digits than its factorization.

1115231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61957287 (or 61957284 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1115231022 is about 33395.0748165055. The cubic root of 1115231022 is about 1037.0227417724.

Adding to 1115231022 its reverse (2201325111), we get a palindrome (3316556133).

The spelling of 1115231022 in words is "one billion, one hundred fifteen million, two hundred thirty-one thousand, twenty-two".