11012020000021 has 8 divisors (see below), whose sum is σ = 11176451889344. Its totient is φ = 10847590269120.

The previous prime is 11012019999983. The next prime is 11012020000027. The reversal of 11012020000021 is 12000002021011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11012020000021 - 2¹¹ = 11012019997973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012019999962 and 11012020000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012020000027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11847421 + ... + 12743053.

It is an arithmetic number, because the mean of its divisors is an integer number (1397056486168).

Almost surely, 2^{11012020000021} is an apocalyptic number.

It is an amenable number.

11012020000021 is a deficient number, since it is larger than the sum of its proper divisors (164431889323).

11012020000021 is an equidigital number, since it uses as much as digits as its factorization.

11012020000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079211.

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

Adding to 11012020000021 its reverse (12000002021011), we get a palindrome (23012022021032).

The spelling of 11012020000021 in words is "eleven trillion, twelve billion, twenty million, twenty-one", and thus it is an aban number and an uban number.