7211000000011 has 4 divisors (see below), whose sum is σ = 7212621547072. Its totient is φ = 7209378452952.

The previous prime is 7211000000003. The next prime is 7211000000033. The reversal of 7211000000011 is 1100000001127.

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

It is a cyclic number.

It is not a de Polignac number, because 7211000000011 - 2³ = 7211000000003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7210999999928 and 7211000000000.

It is not an unprimeable number, because it can be changed into a prime (7211000000111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810766860 + ... + 810775753.

It is an arithmetic number, because the mean of its divisors is an integer number (1803155386768).

Almost surely, 2^{7211000000011} is an apocalyptic number.

7211000000011 is a deficient number, since it is larger than the sum of its proper divisors (1621547061).

7211000000011 is a wasteful number, since it uses less digits than its factorization.

7211000000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621547060.

The product of its (nonzero) digits is 14, while the sum is 13.

Adding to 7211000000011 its reverse (1100000001127), we get a palindrome (8311000001138).

The spelling of 7211000000011 in words is "seven trillion, two hundred eleven billion, eleven", and thus it is an aban number.