11121012021012 has 24 divisors (see below), whose sum is σ = 25949358775200. Its totient is φ = 3706956760416.

The previous prime is 11121012020981. The next prime is 11121012021013. The reversal of 11121012021012 is 21012021012111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11121012020982 and 11121012021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121012021013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4918462 + ... + 6814197.

It is an arithmetic number, because the mean of its divisors is an integer number (1081223282300).

Almost surely, 2^{11121012021012} is an apocalyptic number.

11121012021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11121012021012 is an abundant number, since it is smaller than the sum of its proper divisors (14828346754188).

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

11121012021012 is a wasteful number, since it uses less digits than its factorization.

11121012021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11811655 (or 11811653 counting only the distinct ones).

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

Adding to 11121012021012 its reverse (21012021012111), we get a palindrome (32133033033123).

It can be divided in two parts, 111 and 21012021012, that multiplied together give a palindrome (2332334332332).

The spelling of 11121012021012 in words is "eleven trillion, one hundred twenty-one billion, twelve million, twenty-one thousand, twelve".