125313512212 has 24 divisors (see below), whose sum is σ = 250637325120. Its totient is φ = 53703583680.

The previous prime is 125313512113. The next prime is 125313512213. The reversal of 125313512212 is 212215313521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125313512213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 730512 + ... + 885592.

It is an arithmetic number, because the mean of its divisors is an integer number (10443221880).

Almost surely, 2^125313512212 is an apocalyptic number.

It is an amenable number.

125313512212 is an abundant number, since it is smaller than the sum of its proper divisors (125323812908).

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

125313512212 is a wasteful number, since it uses less digits than its factorization.

125313512212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183951 (or 183949 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

Adding to 125313512212 its reverse (212215313521), we get a palindrome (337528825733).

The spelling of 125313512212 in words is "one hundred twenty-five billion, three hundred thirteen million, five hundred twelve thousand, two hundred twelve".