15530122222 has 16 divisors (see below), whose sum is σ = 23905491120. Its totient is φ = 7563733632.

The previous prime is 15530122163. The next prime is 15530122243. The reversal of 15530122222 is 22222103551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512283 + ... + 541750.

It is an arithmetic number, because the mean of its divisors is an integer number (1494093195).

Almost surely, 2^15530122222 is an apocalyptic number.

15530122222 is a deficient number, since it is larger than the sum of its proper divisors (8375368898).

15530122222 is a wasteful number, since it uses less digits than its factorization.

15530122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054227.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 15530122222 its reverse (22222103551), we get a palindrome (37752225773).

The spelling of 15530122222 in words is "fifteen billion, five hundred thirty million, one hundred twenty-two thousand, two hundred twenty-two".