12214028658 has 256 divisors, whose sum is σ = 30238064640. Its totient is φ = 3251404800.

The previous prime is 12214028627. The next prime is 12214028711. The reversal of 12214028658 is 85682041221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 96173391 + ... + 96173517.

It is an arithmetic number, because the mean of its divisors is an integer number (118117440).

Almost surely, 2^12214028658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12214028658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15119032320).

12214028658 is an abundant number, since it is smaller than the sum of its proper divisors (18024035982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12214028658 is a wasteful number, since it uses less digits than its factorization.

12214028658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293.

The product of its (nonzero) digits is 61440, while the sum is 39.

Adding to 12214028658 its reverse (85682041221), we get a palindrome (97896069879).

The spelling of 12214028658 in words is "twelve billion, two hundred fourteen million, twenty-eight thousand, six hundred fifty-eight".