30221311112138 has 4 divisors (see below), whose sum is σ = 45331966668210. Its totient is φ = 15110655556068.

The previous prime is 30221311112131. The next prime is 30221311112141. The reversal of 30221311112138 is 83121111312203.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30212534607649 + 8776504489 = 5496593^2 + 93683^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30221311112138.

It is not an unprimeable number, because it can be changed into a prime (30221311112131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7555327778033 + ... + 7555327778036.

Almost surely, 2^{30221311112138} is an apocalyptic number.

30221311112138 is a deficient number, since it is larger than the sum of its proper divisors (15110655556072).

30221311112138 is a wasteful number, since it uses less digits than its factorization.

30221311112138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15110655556071.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 30221311112138 in words is "thirty trillion, two hundred twenty-one billion, three hundred eleven million, one hundred twelve thousand, one hundred thirty-eight".