7122681227 has 2 divisors, whose sum is σ = 7122681228. Its totient is φ = 7122681226.

The previous prime is 7122681173. The next prime is 7122681311. The reversal of 7122681227 is 7221862217.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7122681227 - 2¹² = 7122677131 is a prime.

It is a super-2 number, since 2×7122681227² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7122684227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3561340613 + 3561340614.

It is an arithmetic number, because the mean of its divisors is an integer number (3561340614).

Almost surely, 2^7122681227 is an apocalyptic number.

7122681227 is a deficient number, since it is larger than the sum of its proper divisors (1).

7122681227 is an equidigital number, since it uses as much as digits as its factorization.

7122681227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 7122681227 is about 84395.9787371413. The cubic root of 7122681227 is about 1924.0417991180.

The spelling of 7122681227 in words is "seven billion, one hundred twenty-two million, six hundred eighty-one thousand, two hundred twenty-seven".