12122558 has 16 divisors (see below), whose sum is σ = 20874240. Its totient is φ = 5172216.

The previous prime is 12122557. The next prime is 12122563. The reversal of 12122558 is 85522121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535 + ... + 5157.

It is an arithmetic number, because the mean of its divisors is an integer number (1304640).

Almost surely, 2^12122558 is an apocalyptic number.

12122558 is a deficient number, since it is larger than the sum of its proper divisors (8751682).

12122558 is a wasteful number, since it uses less digits than its factorization.

12122558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871.

The product of its digits is 1600, while the sum is 26.

The square root of 12122558 is about 3481.7464008741. The cubic root of 12122558 is about 229.7196205376.

Adding to 12122558 its reverse (85522121), we get a palindrome (97644679).

The spelling of 12122558 in words is "twelve million, one hundred twenty-two thousand, five hundred fifty-eight".