11011102231212 has 96 divisors (see below), whose sum is σ = 28733744625600. Its totient is φ = 3646403744256.

The previous prime is 11011102231193. The next prime is 11011102231289. The reversal of 11011102231212 is 21213220111011.

It is a happy number.

11011102231212 is a `hidden beast` number, since 110 + 1 + 110 + 2 + 231 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112759464 + ... + 112857072.

It is an arithmetic number, because the mean of its divisors is an integer number (299309839850).

Almost surely, 2^{11011102231212} is an apocalyptic number.

11011102231212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11011102231212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14366872312800).

11011102231212 is an abundant number, since it is smaller than the sum of its proper divisors (17722642394388).

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

11011102231212 is a wasteful number, since it uses less digits than its factorization.

11011102231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104432 (or 104424 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11011102231212 its reverse (21213220111011), we get a palindrome (32224322342223).

The spelling of 11011102231212 in words is "eleven trillion, eleven billion, one hundred two million, two hundred thirty-one thousand, two hundred twelve".