7211968011 has 6 divisors (see below), whose sum is σ = 10417287140. Its totient is φ = 4807978668.

The previous prime is 7211968009. The next prime is 7211968033. The reversal of 7211968011 is 1108691127.

7211968011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7211968011 - 2¹ = 7211968009 is a prime.

It is a super-2 number, since 2×7211968011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7211968081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400664881 + ... + 400664898.

Almost surely, 2^7211968011 is an apocalyptic number.

7211968011 is a deficient number, since it is larger than the sum of its proper divisors (3205319129).

7211968011 is a wasteful number, since it uses less digits than its factorization.

7211968011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801329785 (or 801329782 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The square root of 7211968011 is about 84923.3066419343. The cubic root of 7211968011 is about 1932.0480832072.

The spelling of 7211968011 in words is "seven billion, two hundred eleven million, nine hundred sixty-eight thousand, eleven".