25012022112 has 576 divisors, whose sum is σ = 91299446784. Its totient is φ = 6308305920.

The previous prime is 25012022069. The next prime is 25012022153. The reversal of 25012022112 is 21122021052.

25012022112 is a `hidden beast` number, since 250 + 1 + 202 + 211 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 196944993 + ... + 196945119.

It is an arithmetic number, because the mean of its divisors is an integer number (158505984).

Almost surely, 2^25012022112 is an apocalyptic number.

25012022112 is a gapful number since it is divisible by the number (22) 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 25012022112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45649723392).

25012022112 is an abundant number, since it is smaller than the sum of its proper divisors (66287424672).

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

25012022112 is a wasteful number, since it uses less digits than its factorization.

25012022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 25012022112 its reverse (21122021052), we get a palindrome (46134043164).

The spelling of 25012022112 in words is "twenty-five billion, twelve million, twenty-two thousand, one hundred twelve".