12212525250 has 256 divisors, whose sum is σ = 35186711040. Its totient is φ = 3132172800.

The previous prime is 12212525249. The next prime is 12212525251. The reversal of 12212525250 is 5252521221.

It is a happy number.

12212525250 is a `hidden beast` number, since 12 + 2 + 125 + 2 + 525 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12212525249) and next prime (12212525251).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12212525251) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26723022 + ... + 26723478.

It is an arithmetic number, because the mean of its divisors is an integer number (137448090).

Almost surely, 2^12212525250 is an apocalyptic number.

12212525250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212525250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17593355520).

12212525250 is an abundant number, since it is smaller than the sum of its proper divisors (22974185790).

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

12212525250 is a wasteful number, since it uses less digits than its factorization.

12212525250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 12212525250 in words is "twelve billion, two hundred twelve million, five hundred twenty-five thousand, two hundred fifty".