1100055012 has 48 divisors (see below), whose sum is σ = 2949727872. Its totient is φ = 312560640.

The previous prime is 1100055001. The next prime is 1100055053. The reversal of 1100055012 is 2105500011.

It is a junction number, because it is equal to n+sod(n) for n = 1100054982 and 1100055000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20973 + ... + 51380.

It is an arithmetic number, because the mean of its divisors is an integer number (61452664).

Almost surely, 2^1100055012 is an apocalyptic number.

1100055012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1100055012 is an abundant number, since it is smaller than the sum of its proper divisors (1849672860).

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

1100055012 is a wasteful number, since it uses less digits than its factorization.

1100055012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72548 (or 72546 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1100055012 is about 33167.0772302897. The cubic root of 1100055012 is about 1032.2973235918.

Adding to 1100055012 its reverse (2105500011), we get a palindrome (3205555023).

The spelling of 1100055012 in words is "one billion, one hundred million, fifty-five thousand, twelve".