103128951222 has 384 divisors, whose sum is σ = 277177958400. Its totient is φ = 28291032000.

The previous prime is 103128951217. The next prime is 103128951379. The reversal of 103128951222 is 222159821301.

103128951222 is a `hidden beast` number, since 10 + 3 + 128 + 9 + 512 + 2 + 2 = 666.

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 191 ways as a sum of consecutive naturals, for example, 488762697 + ... + 488762907.

It is an arithmetic number, because the mean of its divisors is an integer number (721817600).

Almost surely, 2^103128951222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103128951222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138588979200).

103128951222 is an abundant number, since it is smaller than the sum of its proper divisors (174049007178).

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

103128951222 is a wasteful number, since it uses less digits than its factorization.

103128951222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 103128951222 in words is "one hundred three billion, one hundred twenty-eight million, nine hundred fifty-one thousand, two hundred twenty-two".