30112122220 has 72 divisors (see below), whose sum is σ = 64652893200. Its totient is φ = 11780208000.

The previous prime is 30112122181. The next prime is 30112122223. The reversal of 30112122220 is 2222121103.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30112122194 and 30112122203.

It is not an unprimeable number, because it can be changed into a prime (30112122223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13376095 + ... + 13378345.

It is an arithmetic number, because the mean of its divisors is an integer number (897956850).

Almost surely, 2^30112122220 is an apocalyptic number.

It is an amenable number.

30112122220 is an abundant number, since it is smaller than the sum of its proper divisors (34540770980).

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

30112122220 is a wasteful number, since it uses less digits than its factorization.

30112122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543 (or 2474 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 30112122220 its reverse (2222121103), we get a palindrome (32334243323).

The spelling of 30112122220 in words is "thirty billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twenty".