11212021020012 has 96 divisors (see below), whose sum is σ = 28352405233152. Its totient is φ = 3434733904896.

The previous prime is 11212021019933. The next prime is 11212021020037. The reversal of 11212021020012 is 21002012021211.

It is a junction number, because it is equal to n+sod(n) for n = 11212021019973 and 11212021020000.

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 31 ways as a sum of consecutive naturals, for example, 31516353 + ... + 31870119.

It is an arithmetic number, because the mean of its divisors is an integer number (295337554512).

Almost surely, 2^{11212021020012} is an apocalyptic number.

11212021020012 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 11212021020012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14176202616576).

11212021020012 is an abundant number, since it is smaller than the sum of its proper divisors (17140384213140).

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

11212021020012 is a wasteful number, since it uses less digits than its factorization.

11212021020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357447 (or 357445 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11212021020012 its reverse (21002012021211), we get a palindrome (32214033041223).

The spelling of 11212021020012 in words is "eleven trillion, two hundred twelve billion, twenty-one million, twenty thousand, twelve".