11102220012 has 24 divisors (see below), whose sum is σ = 27897886576. Its totient is φ = 3416067648.

The previous prime is 11102220007. The next prime is 11102220047. The reversal of 11102220012 is 21002220111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11102220012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35583883 + ... + 35584194.

Almost surely, 2^11102220012 is an apocalyptic number.

11102220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11102220012 is an abundant number, since it is smaller than the sum of its proper divisors (16795666564).

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

11102220012 is a wasteful number, since it uses less digits than its factorization.

11102220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71168097 (or 71168095 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11102220012 its reverse (21002220111), we get a palindrome (32104440123).

Subtracting 11102220012 from its reverse (21002220111), we obtain a palindrome (9900000099).

The spelling of 11102220012 in words is "eleven billion, one hundred two million, two hundred twenty thousand, twelve".