30221100312 has 64 divisors (see below), whose sum is σ = 81385006080. Its totient is φ = 9296456832.

The previous prime is 30221100227. The next prime is 30221100319. The reversal of 30221100312 is 21300112203.

It is a junction number, because it is equal to n+sod(n) for n = 30221100291 and 30221100300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221100319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1546233 + ... + 1565655.

It is an arithmetic number, because the mean of its divisors is an integer number (1271640720).

Almost surely, 2^30221100312 is an apocalyptic number.

It is an amenable number.

30221100312 is an abundant number, since it is smaller than the sum of its proper divisors (51163905768).

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

30221100312 is a wasteful number, since it uses less digits than its factorization.

30221100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24432 (or 24428 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30221100312 its reverse (21300112203), we get a palindrome (51521212515).

The spelling of 30221100312 in words is "thirty billion, two hundred twenty-one million, one hundred thousand, three hundred twelve".