30012321220312 has 32 divisors (see below), whose sum is σ = 57352684003200. Its totient is φ = 14718448203264.

The previous prime is 30012321220309. The next prime is 30012321220313. The reversal of 30012321220312 is 21302212321003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012321220313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9637512 + ... + 12365527.

It is an arithmetic number, because the mean of its divisors is an integer number (1792271375100).

Almost surely, 2^{30012321220312} is an apocalyptic number.

It is an amenable number.

30012321220312 is a deficient number, since it is larger than the sum of its proper divisors (27340362782888).

30012321220312 is a wasteful number, since it uses less digits than its factorization.

30012321220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22006315 (or 22006311 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 30012321220312 its reverse (21302212321003), we get a palindrome (51314533541315).

The spelling of 30012321220312 in words is "thirty trillion, twelve billion, three hundred twenty-one million, two hundred twenty thousand, three hundred twelve".