30305112223212 has 36 divisors (see below), whose sum is σ = 76605407181576. Its totient is φ = 10101596212800.

The previous prime is 30305112223207. The next prime is 30305112223219. The reversal of 30305112223212 is 21232221150303.

30305112223212 is a `hidden beast` number, since 3 + 0 + 305 + 1 + 12 + 22 + 321 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×30305112223212² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30305112223219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1039473 + ... + 7854344.

It is an arithmetic number, because the mean of its divisors is an integer number (2127927977266).

Almost surely, 2^{30305112223212} is an apocalyptic number.

It is an amenable number.

30305112223212 is an abundant number, since it is smaller than the sum of its proper divisors (46300294958364).

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

30305112223212 is a wasteful number, since it uses less digits than its factorization.

30305112223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988478 (or 8988473 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 30305112223212 its reverse (21232221150303), we get a palindrome (51537333373515).

The spelling of 30305112223212 in words is "thirty trillion, three hundred five billion, one hundred twelve million, two hundred twenty-three thousand, two hundred twelve".