11021101021212 has 24 divisors (see below), whose sum is σ = 25715975905536. Its totient is φ = 3673689837168.

The previous prime is 11021101021111. The next prime is 11021101021331. The reversal of 11021101021212 is 21212010112011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11021101021191 and 11021101021200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3881133 + ... + 6091419.

It is an arithmetic number, because the mean of its divisors is an integer number (1071498996064).

Almost surely, 2^{11021101021212} is an apocalyptic number.

11021101021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11021101021212 is an abundant number, since it is smaller than the sum of its proper divisors (14694874884324).

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

11021101021212 is a wasteful number, since it uses less digits than its factorization.

11021101021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625817 (or 2625815 counting only the distinct ones).

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

Adding to 11021101021212 its reverse (21212010112011), we get a palindrome (32233111133223).

The spelling of 11021101021212 in words is "eleven trillion, twenty-one billion, one hundred one million, twenty-one thousand, two hundred twelve".