30021110122 has 4 divisors (see below), whose sum is σ = 45031665186. Its totient is φ = 15010555060.

The previous prime is 30021110089. The next prime is 30021110123. The reversal of 30021110122 is 22101112003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22101112003 = 373 ⋅59252311.

It can be written as a sum of positive squares in only one way, i.e., 16871671881 + 13149438241 = 129891^2 + 114671^2 .

It is not an unprimeable number, because it can be changed into a prime (30021110123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7505277529 + ... + 7505277532.

Almost surely, 2^30021110122 is an apocalyptic number.

30021110122 is a deficient number, since it is larger than the sum of its proper divisors (15010555064).

30021110122 is a wasteful number, since it uses less digits than its factorization.

30021110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15010555063.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30021110122 its reverse (22101112003), we get a palindrome (52122222125).

The spelling of 30021110122 in words is "thirty billion, twenty-one million, one hundred ten thousand, one hundred twenty-two".