11010121212 has 12 divisors (see below), whose sum is σ = 25690282856. Its totient is φ = 3670040400.

The previous prime is 11010121163. The next prime is 11010121249. The reversal of 11010121212 is 21212101011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 917510101 = 11010121212 / (1 + 1 + 0 + 1 + 0 + 1 + 2 + 1 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458755039 + ... + 458755062.

Almost surely, 2^11010121212 is an apocalyptic number.

11010121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11010121212 is an abundant number, since it is smaller than the sum of its proper divisors (14680161644).

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

11010121212 is a wasteful number, since it uses less digits than its factorization.

11010121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917510108 (or 917510106 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11010121212 its reverse (21212101011), we get a palindrome (32222222223).

The spelling of 11010121212 in words is "eleven billion, ten million, one hundred twenty-one thousand, two hundred twelve".