125224130000 has 50 divisors (see below), whose sum is σ = 303180165354. Its totient is φ = 50089648000.

The previous prime is 125224129997. The next prime is 125224130029. The reversal of 125224130000 is 31422521.

It can be written as a sum of positive squares in 5 ways, for example, as 56114029456 + 69110100544 = 236884^2 + 262888^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6251207 + ... + 6271206.

Almost surely, 2^125224130000 is an apocalyptic number.

125224130000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125224130000 is an abundant number, since it is smaller than the sum of its proper divisors (177956035354).

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

125224130000 is an equidigital number, since it uses as much as digits as its factorization.

125224130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12522441 (or 12522420 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 125224130000 its reverse (31422521), we get a palindrome (125255552521).

The spelling of 125224130000 in words is "one hundred twenty-five billion, two hundred twenty-four million, one hundred thirty thousand".