30212221122 has 24 divisors (see below), whose sum is σ = 67056394860. Its totient is φ = 9825112320.

The previous prime is 30212221079. The next prime is 30212221133. The reversal of 30212221122 is 22112221203.

It can be written as a sum of positive squares in 2 ways, for example, as 30147724161 + 64496961 = 173631^2 + 8031^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30212221095 and 30212221104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20468247 + ... + 20469722.

Almost surely, 2^30212221122 is an apocalyptic number.

30212221122 is an abundant number, since it is smaller than the sum of its proper divisors (36844173738).

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

30212221122 is a wasteful number, since it uses less digits than its factorization.

30212221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40938018 (or 40938015 counting only the distinct ones).

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

Adding to 30212221122 its reverse (22112221203), we get a palindrome (52324442325).

The spelling of 30212221122 in words is "thirty billion, two hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".