125445132212 has 24 divisors (see below), whose sum is σ = 221970561960. Its totient is φ = 62026473600.

The previous prime is 125445132181. The next prime is 125445132221. The reversal of 125445132212 is 212231544521.

It can be written as a sum of positive squares in 4 ways, for example, as 40696606756 + 84748525456 = 201734^2 + 291116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147638 + ... + 522194.

It is an arithmetic number, because the mean of its divisors is an integer number (9248773415).

Almost surely, 2^125445132212 is an apocalyptic number.

It is an amenable number.

125445132212 is a deficient number, since it is larger than the sum of its proper divisors (96525429748).

125445132212 is a wasteful number, since it uses less digits than its factorization.

125445132212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375491 (or 375489 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

Adding to 125445132212 its reverse (212231544521), we get a palindrome (337676676733).

The spelling of 125445132212 in words is "one hundred twenty-five billion, four hundred forty-five million, one hundred thirty-two thousand, two hundred twelve".