1121112210 has 96 divisors (see below), whose sum is σ = 2858124096. Its totient is φ = 281232000.

The previous prime is 1121112169. The next prime is 1121112217. The reversal of 1121112210 is 122111211.

It is a super-2 number, since 2×1121112210² = 2513785174822168200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121112217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1066185 + ... + 1067235.

It is an arithmetic number, because the mean of its divisors is an integer number (29772126).

Almost surely, 2^1121112210 is an apocalyptic number.

1121112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429062048).

1121112210 is an abundant number, since it is smaller than the sum of its proper divisors (1737011886).

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

1121112210 is a wasteful number, since it uses less digits than its factorization.

1121112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1121112210 is about 33483.0137532451. The cubic root of 1121112210 is about 1038.8424652071.

Adding to 1121112210 its reverse (122111211), we get a palindrome (1243223421).

Subtracting from 1121112210 its reverse (122111211), we obtain a palindrome (999000999).

The spelling of 1121112210 in words is "one billion, one hundred twenty-one million, one hundred twelve thousand, two hundred ten".