7221613151 has 2 divisors, whose sum is σ = 7221613152. Its totient is φ = 7221613150.

The previous prime is 7221613123. The next prime is 7221613159. The reversal of 7221613151 is 1513161227.

It is a strong prime.

It is an emirp because it is prime and its reverse (1513161227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7221613151 - 2¹⁰ = 7221612127 is a prime.

It is a super-2 number, since 2×7221613151² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7221613159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610806575 + 3610806576.

It is an arithmetic number, because the mean of its divisors is an integer number (3610806576).

Almost surely, 2^7221613151 is an apocalyptic number.

7221613151 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221613151 is an equidigital number, since it uses as much as digits as its factorization.

7221613151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 29.

The square root of 7221613151 is about 84980.0750235018. The cubic root of 7221613151 is about 1932.9089935295.

Adding to 7221613151 its reverse (1513161227), we get a palindrome (8734774378).

The spelling of 7221613151 in words is "seven billion, two hundred twenty-one million, six hundred thirteen thousand, one hundred fifty-one".