11221203012 has 24 divisors (see below), whose sum is σ = 26184989376. Its totient is φ = 3740089248.

The previous prime is 11221202999. The next prime is 11221203029. The reversal of 11221203012 is 21030212211.

11221203012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11221202982 and 11221203000.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 146193 + ... + 209319.

It is an arithmetic number, because the mean of its divisors is an integer number (1091041224).

Almost surely, 2^11221203012 is an apocalyptic number.

11221203012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221203012 is an abundant number, since it is smaller than the sum of its proper divisors (14963786364).

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

11221203012 is a wasteful number, since it uses less digits than its factorization.

11221203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77947 (or 77945 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11221203012 its reverse (21030212211), we get a palindrome (32251415223).

The spelling of 11221203012 in words is "eleven billion, two hundred twenty-one million, two hundred three thousand, twelve".