3222128039928 has 128 divisors (see below), whose sum is σ = 9691654233600. Its totient is φ = 872061037056.

The previous prime is 3222128039927. The next prime is 3222128039957. The reversal of 3222128039928 is 8299308212223.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222128039927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32678350 + ... + 32776802.

It is an arithmetic number, because the mean of its divisors is an integer number (75716048700).

Almost surely, 2^{3222128039928} is an apocalyptic number.

3222128039928 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3222128039928 is an abundant number, since it is smaller than the sum of its proper divisors (6469526193672).

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

3222128039928 is a wasteful number, since it uses less digits than its factorization.

3222128039928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108741 (or 108737 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 3222128039928 in words is "three trillion, two hundred twenty-two billion, one hundred twenty-eight million, thirty-nine thousand, nine hundred twenty-eight".