125425221120 has 200 divisors, whose sum is σ = 449234253864. Its totient is φ = 33446670336.

The previous prime is 125425221091. The next prime is 125425221121. The reversal of 125425221120 is 21122524521.

125425221120 is a `hidden beast` number, since 1 + 2 + 5 + 425 + 2 + 211 + 20 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125425221121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 95074 + ... + 509793.

Almost surely, 2^125425221120 is an apocalyptic number.

125425221120 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 125425221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224617126932).

125425221120 is an abundant number, since it is smaller than the sum of its proper divisors (323809032744).

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

125425221120 is an frugal number, since it uses more digits than its factorization.

125425221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604902 (or 604877 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 125425221120 its reverse (21122524521), we get a palindrome (146547745641).

The spelling of 125425221120 in words is "one hundred twenty-five billion, four hundred twenty-five million, two hundred twenty-one thousand, one hundred twenty".