1101100020012 has 36 divisors (see below), whose sum is σ = 2785597310496. Its totient is φ = 366735166560.

The previous prime is 1101100020011. The next prime is 1101100020049. The reversal of 1101100020012 is 2100200011011.

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 = 1101100019976 and 1101100020003.

It is not an unprimeable number, because it can be changed into a prime (1101100020011) 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, 12378963 + ... + 12467594.

Almost surely, 2^{1101100020012} is an apocalyptic number.

1101100020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101100020012 is an abundant number, since it is smaller than the sum of its proper divisors (1684497290484).

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

1101100020012 is a wasteful number, since it uses less digits than its factorization.

1101100020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24847798 (or 24847793 counting only the distinct ones).

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

Adding to 1101100020012 its reverse (2100200011011), we get a palindrome (3201300031023).

Subtracting 1101100020012 from its reverse (2100200011011), we obtain a palindrome (999099990999).

The spelling of 1101100020012 in words is "one trillion, one hundred one billion, one hundred million, twenty thousand, twelve".