11221000021012 has 24 divisors (see below), whose sum is σ = 19714427853120. Its totient is φ = 5588342825280.

The previous prime is 11221000021001. The next prime is 11221000021027. The reversal of 11221000021012 is 21012000012211.

It is a junction number, because it is equal to n+sod(n) for n = 11221000020983 and 11221000021001.

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, 3328314 + ... + 5789617.

It is an arithmetic number, because the mean of its divisors is an integer number (821434493880).

Almost surely, 2^{11221000021012} is an apocalyptic number.

It is an amenable number.

11221000021012 is a deficient number, since it is larger than the sum of its proper divisors (8493427832108).

11221000021012 is a wasteful number, since it uses less digits than its factorization.

11221000021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9119151 (or 9119149 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11221000021012 its reverse (21012000012211), we get a palindrome (32233000033223).

The spelling of 11221000021012 in words is "eleven trillion, two hundred twenty-one billion, twenty-one thousand, twelve".