1101120012 has 36 divisors (see below), whose sum is σ = 2818626720. Its totient is φ = 362392992.

The previous prime is 1101119993. The next prime is 1101120019. The reversal of 1101120012 is 2100211011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 1101119976 and 1101120003.

It is not an unprimeable number, because it can be changed into a prime (1101120019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190743 + ... + 196430.

Almost surely, 2^1101120012 is an apocalyptic number.

1101120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101120012 is an abundant number, since it is smaller than the sum of its proper divisors (1717506708).

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

1101120012 is a wasteful number, since it uses less digits than its factorization.

1101120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387262 (or 387257 counting only the distinct ones).

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

The square root of 1101120012 is about 33183.1284239446. The cubic root of 1101120012 is about 1032.6303499832.

Adding to 1101120012 its reverse (2100211011), we get a palindrome (3201331023).

Subtracting 1101120012 from its reverse (2100211011), we obtain a palindrome (999090999).

The spelling of 1101120012 in words is "one billion, one hundred one million, one hundred twenty thousand, twelve".