12522000 has 80 divisors (see below), whose sum is σ = 40390272. Its totient is φ = 3337600.

The previous prime is 12521989. The next prime is 12522011. The reversal of 12522000 is 22521.

It is an interprime number because it is at equal distance from previous prime (12521989) and next prime (12522011).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4957 + ... + 7043.

Almost surely, 2^12522000 is an apocalyptic number.

12522000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12522000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20195136).

12522000 is an abundant number, since it is smaller than the sum of its proper divisors (27868272).

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

12522000 is a wasteful number, since it uses less digits than its factorization.

12522000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 2097 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 12522000 is about 3538.6438080146. The cubic root of 12522000 is about 232.2155151545.

Adding to 12522000 its reverse (22521), we get a palindrome (12544521).

The spelling of 12522000 in words is "twelve million, five hundred twenty-two thousand".