30221112212 has 12 divisors (see below), whose sum is σ = 52888182900. Its totient is φ = 15110202816.

The previous prime is 30221112179. The next prime is 30221112239. The reversal of 30221112212 is 21221112203.

It can be written as a sum of positive squares in 2 ways, for example, as 9040967056 + 21180145156 = 95084^2 + 145534^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238598 + ... + 342594.

It is an arithmetic number, because the mean of its divisors is an integer number (4407348575).

Almost surely, 2^30221112212 is an apocalyptic number.

It is an amenable number.

30221112212 is a deficient number, since it is larger than the sum of its proper divisors (22667070688).

30221112212 is a wasteful number, since it uses less digits than its factorization.

30221112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176650 (or 176648 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 30221112212 its reverse (21221112203), we get a palindrome (51442224415).

Subtracting from 30221112212 its reverse (21221112203), we obtain a palindrome (9000000009).

The spelling of 30221112212 in words is "thirty billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twelve".