11012200000021 has 32 divisors (see below), whose sum is σ = 12322921568256. Its totient is φ = 9756675768000.

The previous prime is 11012199999959. The next prime is 11012200000031. The reversal of 11012200000021 is 12000000221011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11012200000021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012199999953 and 11012200000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012200000031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44683866 + ... + 44929636.

It is an arithmetic number, because the mean of its divisors is an integer number (385091299008).

Almost surely, 2^{11012200000021} is an apocalyptic number.

11012200000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012200000021 is a deficient number, since it is larger than the sum of its proper divisors (1310721568235).

11012200000021 is a wasteful number, since it uses less digits than its factorization.

11012200000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246513.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11012200000021 its reverse (12000000221011), we get a palindrome (23012200221032).

The spelling of 11012200000021 in words is "eleven trillion, twelve billion, two hundred million, twenty-one", and thus it is an aban number.