1112023220 has 48 divisors (see below), whose sum is σ = 2911483008. Its totient is φ = 346604160.

The previous prime is 1112023217. The next prime is 1112023247. The reversal of 1112023220 is 223202111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1112023195 and 1112023204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359507 + ... + 362586.

It is an arithmetic number, because the mean of its divisors is an integer number (60655896).

Almost surely, 2^1112023220 is an apocalyptic number.

1112023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112023220 is an abundant number, since it is smaller than the sum of its proper divisors (1799459788).

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

1112023220 is a wasteful number, since it uses less digits than its factorization.

1112023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722120 (or 722118 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1112023220 is about 33347.0121600122. The cubic root of 1112023220 is about 1036.0275045743.

Adding to 1112023220 its reverse (223202111), we get a palindrome (1335225331).

The spelling of 1112023220 in words is "one billion, one hundred twelve million, twenty-three thousand, two hundred twenty".