15122122229 has 2 divisors, whose sum is σ = 15122122230. Its totient is φ = 15122122228.

The previous prime is 15122122159. The next prime is 15122122243. The reversal of 15122122229 is 92222122151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10165680625 + 4956441604 = 100825^2 + 70402^2 .

It is an emirp because it is prime and its reverse (92222122151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15122122229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15122122129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7561061114 + 7561061115.

It is an arithmetic number, because the mean of its divisors is an integer number (7561061115).

Almost surely, 2^15122122229 is an apocalyptic number.

It is an amenable number.

15122122229 is a deficient number, since it is larger than the sum of its proper divisors (1).

15122122229 is an equidigital number, since it uses as much as digits as its factorization.

15122122229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The spelling of 15122122229 in words is "fifteen billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-nine".