128030022 has 12 divisors (see below), whose sum is σ = 277398420. Its totient is φ = 42676668.

The previous prime is 128029991. The next prime is 128030051. The reversal of 128030022 is 220030821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7112779 = 128030022 / (1 + 2 + 8 + 0 + 3 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 128029977 and 128030004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3556372 + ... + 3556407.

It is an arithmetic number, because the mean of its divisors is an integer number (23116535).

Almost surely, 2^128030022 is an apocalyptic number.

128030022 is an abundant number, since it is smaller than the sum of its proper divisors (149368398).

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

128030022 is a wasteful number, since it uses less digits than its factorization.

128030022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112787 (or 7112784 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 128030022 is about 11315.0352186814. The cubic root of 128030022 is about 504.0078182839.

Adding to 128030022 its reverse (220030821), we get a palindrome (348060843).

The spelling of 128030022 in words is "one hundred twenty-eight million, thirty thousand, twenty-two".