11100012012 has 48 divisors (see below), whose sum is σ = 28914256000. Its totient is φ = 3682460880.

The previous prime is 11100011971. The next prime is 11100012013. The reversal of 11100012012 is 21021000111.

It is a happy number.

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

11100012012 is a modest number, since divided by 12012 gives 11100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11100011985 and 11100012003.

It is not an unprimeable number, because it can be changed into a prime (11100012013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220762 + ... + 266337.

Almost surely, 2^11100012012 is an apocalyptic number.

11100012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11100012012 is an abundant number, since it is smaller than the sum of its proper divisors (17814243988).

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

11100012012 is a wasteful number, since it uses less digits than its factorization.

11100012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487323 (or 487315 counting only the distinct ones).

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

Adding to 11100012012 its reverse (21021000111), we get a palindrome (32121012123).

The spelling of 11100012012 in words is "eleven billion, one hundred million, twelve thousand, twelve".