30013221312122 has 4 divisors (see below), whose sum is σ = 45019831968186. Its totient is φ = 15006610656060.

The previous prime is 30013221312121. The next prime is 30013221312131. The reversal of 30013221312122 is 22121312231003.

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., 30009020846401 + 4200465721 = 5478049^2 + 64811^2 .

It is not an unprimeable number, because it can be changed into a prime (30013221312121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7503305328029 + ... + 7503305328032.

Almost surely, 2^{30013221312122} is an apocalyptic number.

30013221312122 is a deficient number, since it is larger than the sum of its proper divisors (15006610656064).

30013221312122 is a wasteful number, since it uses less digits than its factorization.

30013221312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15006610656063.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 30013221312122 its reverse (22121312231003), we get a palindrome (52134533543125).

The spelling of 30013221312122 in words is "thirty trillion, thirteen billion, two hundred twenty-one million, three hundred twelve thousand, one hundred twenty-two".