30000001220312 has 256 divisors, whose sum is σ = 67631353574400. Its totient is φ = 12366671708160.

The previous prime is 30000001220311. The next prime is 30000001220393. The reversal of 30000001220312 is 21302210000003.

It is a happy number.

It is a super-2 number, since 2×30000001220312² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000001220311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 247830362 + ... + 247951382.

It is an arithmetic number, because the mean of its divisors is an integer number (264184974900).

Almost surely, 2^{30000001220312} is an apocalyptic number.

It is an amenable number.

30000001220312 is an abundant number, since it is smaller than the sum of its proper divisors (37631352354088).

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

30000001220312 is a wasteful number, since it uses less digits than its factorization.

30000001220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121226 (or 121222 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30000001220312 its reverse (21302210000003), we get a palindrome (51302211220315).

The spelling of 30000001220312 in words is "thirty trillion, one million, two hundred twenty thousand, three hundred twelve".