1121200110 has 64 divisors (see below), whose sum is σ = 3034540800. Its totient is φ = 294519456.

The previous prime is 1121200081. The next prime is 1121200141. The reversal of 1121200110 is 110021211.

It is a happy number.

1121200110 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 = 1121200092 and 1121200101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12900 + ... + 49079.

It is an arithmetic number, because the mean of its divisors is an integer number (47414700).

Almost surely, 2^1121200110 is an apocalyptic number.

1121200110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121200110 is an abundant number, since it is smaller than the sum of its proper divisors (1913340690).

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

1121200110 is a wasteful number, since it uses less digits than its factorization.

1121200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62062 (or 62056 counting only the distinct ones).

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

The square root of 1121200110 is about 33484.3263333757. The cubic root of 1121200110 is about 1038.8696143975.

Adding to 1121200110 its reverse (110021211), we get a palindrome (1231221321).

The spelling of 1121200110 in words is "one billion, one hundred twenty-one million, two hundred thousand, one hundred ten".