30020255122 has 32 divisors (see below), whose sum is σ = 53340102144. Its totient is φ = 12595896720.

The previous prime is 30020255117. The next prime is 30020255123. The reversal of 30020255122 is 22155202003.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 30020255093 and 30020255102.

It is not an unprimeable number, because it can be changed into a prime (30020255123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399138 + ... + 468349.

It is an arithmetic number, because the mean of its divisors is an integer number (1666878192).

Almost surely, 2^30020255122 is an apocalyptic number.

30020255122 is a deficient number, since it is larger than the sum of its proper divisors (23319847022).

30020255122 is a wasteful number, since it uses less digits than its factorization.

30020255122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867535 (or 867513 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 30020255122 its reverse (22155202003), we get a palindrome (52175457125).

The spelling of 30020255122 in words is "thirty billion, twenty million, two hundred fifty-five thousand, one hundred twenty-two".