11002021212 has 192 divisors, whose sum is σ = 33360768000. Its totient is φ = 2740469760.

The previous prime is 11002021171. The next prime is 11002021213. The reversal of 11002021212 is 21212020011.

11002021212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002021213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9315262 + ... + 9316442.

It is an arithmetic number, because the mean of its divisors is an integer number (173754000).

Almost surely, 2^11002021212 is an apocalyptic number.

11002021212 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 11002021212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16680384000).

11002021212 is an abundant number, since it is smaller than the sum of its proper divisors (22358746788).

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

11002021212 is a wasteful number, since it uses less digits than its factorization.

11002021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1674 counting only the distinct ones).

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

Adding to 11002021212 its reverse (21212020011), we get a palindrome (32214041223).

The spelling of 11002021212 in words is "eleven billion, two million, twenty-one thousand, two hundred twelve".