30221103042 has 48 divisors (see below), whose sum is σ = 71214140088. Its totient is φ = 9206726400.

The previous prime is 30221103037. The next prime is 30221103089. The reversal of 30221103042 is 24030112203.

It can be written as a sum of positive squares in 4 ways, for example, as 18507153681 + 11713949361 = 136041^2 + 108231^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 23 ways as a sum of consecutive naturals, for example, 615723 + ... + 662990.

Almost surely, 2^30221103042 is an apocalyptic number.

30221103042 is an abundant number, since it is smaller than the sum of its proper divisors (40993037046).

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

30221103042 is a wasteful number, since it uses less digits than its factorization.

30221103042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278835 (or 1278832 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30221103042 its reverse (24030112203), we get a palindrome (54251215245).

The spelling of 30221103042 in words is "thirty billion, two hundred twenty-one million, one hundred three thousand, forty-two".