128212472312 has 16 divisors (see below), whose sum is σ = 254539467360. Its totient is φ = 60335281024.

The previous prime is 128212472237. The next prime is 128212472317. The reversal of 128212472312 is 213274212821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128212472317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471369248 + ... + 471369519.

It is an arithmetic number, because the mean of its divisors is an integer number (15908716710).

Almost surely, 2^128212472312 is an apocalyptic number.

It is an amenable number.

128212472312 is a deficient number, since it is larger than the sum of its proper divisors (126326995048).

128212472312 is a wasteful number, since it uses less digits than its factorization.

128212472312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942738790 (or 942738786 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The spelling of 128212472312 in words is "one hundred twenty-eight billion, two hundred twelve million, four hundred seventy-two thousand, three hundred twelve".