2111013000221 has 4 divisors (see below), whose sum is σ = 2111016384444. Its totient is φ = 2111009616000.

The previous prime is 2111013000211. The next prime is 2111013000223. The reversal of 2111013000221 is 1220003101112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1774253304121 + 336759696100 = 1332011^2 + 580310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111013000221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111013000196 and 2111013000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111013000223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 454910 + ... + 2104511.

It is an arithmetic number, because the mean of its divisors is an integer number (527754096111).

Almost surely, 2^{2111013000221} is an apocalyptic number.

It is an amenable number.

2111013000221 is a deficient number, since it is larger than the sum of its proper divisors (3384223).

2111013000221 is an equidigital number, since it uses as much as digits as its factorization.

2111013000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384222.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2111013000221 its reverse (1220003101112), we get a palindrome (3331016101333).

The spelling of 2111013000221 in words is "two trillion, one hundred eleven billion, thirteen million, two hundred twenty-one", and thus it is an aban number.