11021022012 has 384 divisors, whose sum is σ = 35697715200. Its totient is φ = 2569881600.

The previous prime is 11021021993. The next prime is 11021022017. The reversal of 11021022012 is 21022012011.

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 (11021022017) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 123831664 + ... + 123831752.

It is an arithmetic number, because the mean of its divisors is an integer number (92962800).

Almost surely, 2^11021022012 is an apocalyptic number.

11021022012 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 11021022012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17848857600).

11021022012 is an abundant number, since it is smaller than the sum of its proper divisors (24676693188).

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

11021022012 is a wasteful number, since it uses less digits than its factorization.

11021022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 186 counting only the distinct ones).

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

Adding to 11021022012 its reverse (21022012011), we get a palindrome (32043034023).

The spelling of 11021022012 in words is "eleven billion, twenty-one million, twenty-two thousand, twelve".