7211012113 has 2 divisors, whose sum is σ = 7211012114. Its totient is φ = 7211012112.

The previous prime is 7211012099. The next prime is 7211012117. The reversal of 7211012113 is 3112101127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5319805969 + 1891206144 = 72937^2 + 43488^2 .

It is an emirp because it is prime and its reverse (3112101127) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7211012113 is a prime.

It is not a weakly prime, because it can be changed into another prime (7211012117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605506056 + 3605506057.

It is an arithmetic number, because the mean of its divisors is an integer number (3605506057).

Almost surely, 2^7211012113 is an apocalyptic number.

It is an amenable number.

7211012113 is a deficient number, since it is larger than the sum of its proper divisors (1).

7211012113 is an equidigital number, since it uses as much as digits as its factorization.

7211012113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 7211012113 is about 84917.6784480122. The cubic root of 7211012113 is about 1931.9627194296.

The spelling of 7211012113 in words is "seven billion, two hundred eleven million, twelve thousand, one hundred thirteen".