7220125111 has 2 divisors, whose sum is σ = 7220125112. Its totient is φ = 7220125110.

The previous prime is 7220125103. The next prime is 7220125123. The reversal of 7220125111 is 1115210227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7220125111 - 2³ = 7220125103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7220125151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610062555 + 3610062556.

It is an arithmetic number, because the mean of its divisors is an integer number (3610062556).

Almost surely, 2^7220125111 is an apocalyptic number.

7220125111 is a deficient number, since it is larger than the sum of its proper divisors (1).

7220125111 is an equidigital number, since it uses as much as digits as its factorization.

7220125111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 7220125111 is about 84971.3193436468. The cubic root of 7220125111 is about 1932.7762234030.

Adding to 7220125111 its reverse (1115210227), we get a palindrome (8335335338).

The spelling of 7220125111 in words is "seven billion, two hundred twenty million, one hundred twenty-five thousand, one hundred eleven".