11011211220012 has 36 divisors (see below), whose sum is σ = 26059793886168. Its totient is φ = 3618707892800.

The previous prime is 11011211219963. The next prime is 11011211220019. The reversal of 11011211220012 is 21002211211011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11011211219973 and 11011211220000.

It is not an unprimeable number, because it can be changed into a prime (11011211220019) 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, 90953289 + ... + 91074272.

Almost surely, 2^{11011211220012} is an apocalyptic number.

11011211220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11011211220012 is an abundant number, since it is smaller than the sum of its proper divisors (15048582666156).

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

11011211220012 is a wasteful number, since it uses less digits than its factorization.

11011211220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182027710 (or 182027637 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11011211220012 its reverse (21002211211011), we get a palindrome (32013422431023).

Subtracting 11011211220012 from its reverse (21002211211011), we obtain a palindrome (9990999990999).

The spelling of 11011211220012 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred twenty thousand, twelve".