30221201312 has 12 divisors (see below), whose sum is σ = 59497990146. Its totient is φ = 15110600640.

The previous prime is 30221201273. The next prime is 30221201321. The reversal of 30221201312 is 21310212203.

It can be written as a sum of positive squares in only one way, i.e., 26949818896 + 3271382416 = 164164^2 + 57196^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472206239 + ... + 472206302.

Almost surely, 2^30221201312 is an apocalyptic number.

30221201312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30221201312 is a deficient number, since it is larger than the sum of its proper divisors (29276788834).

30221201312 is an equidigital number, since it uses as much as digits as its factorization.

30221201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944412551 (or 944412543 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30221201312 its reverse (21310212203), we get a palindrome (51531413515).

The spelling of 30221201312 in words is "thirty billion, two hundred twenty-one million, two hundred one thousand, three hundred twelve".