30001221013 has 16 divisors (see below), whose sum is σ = 31160584192. Its totient is φ = 28854144000.

The previous prime is 30001220987. The next prime is 30001221017. The reversal of 30001221013 is 31012210003.

It is a cyclic number.

It is not a de Polignac number, because 30001221013 - 2⁵ = 30001220981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30001220984 and 30001221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001221017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8260708 + ... + 8264338.

It is an arithmetic number, because the mean of its divisors is an integer number (1947536512).

Almost surely, 2^30001221013 is an apocalyptic number.

It is an amenable number.

30001221013 is a deficient number, since it is larger than the sum of its proper divisors (1159363179).

30001221013 is a wasteful number, since it uses less digits than its factorization.

30001221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30001221013 its reverse (31012210003), we get a palindrome (61013431016).

The spelling of 30001221013 in words is "thirty billion, one million, two hundred twenty-one thousand, thirteen".