1001122110 has 24 divisors (see below), whose sum is σ = 2602917720. Its totient is φ = 266965872.

The previous prime is 1001122097. The next prime is 1001122121. The reversal of 1001122110 is 112211001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1001122092 and 1001122101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5561700 + ... + 5561879.

It is an arithmetic number, because the mean of its divisors is an integer number (108454905).

Almost surely, 2^1001122110 is an apocalyptic number.

1001122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001122110 is an abundant number, since it is smaller than the sum of its proper divisors (1601795610).

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

1001122110 is a wasteful number, since it uses less digits than its factorization.

1001122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11123592 (or 11123589 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1001122110 is about 31640.5137442488. The cubic root of 1001122110 is about 1000.3738968504.

Adding to 1001122110 its reverse (112211001), we get a palindrome (1113333111).

The spelling of 1001122110 in words is "one billion, one million, one hundred twenty-two thousand, one hundred ten".