30011221213 has 8 divisors (see below), whose sum is σ = 31555045080. Its totient is φ = 28501327680.

The previous prime is 30011221193. The next prime is 30011221223. The reversal of 30011221213 is 31212211003.

It can be written as a sum of positive squares in 4 ways, for example, as 661364089 + 29349857124 = 25717^2 + 171318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-30011221213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8480770 + ... + 8484307.

It is an arithmetic number, because the mean of its divisors is an integer number (3944380635).

Almost surely, 2^30011221213 is an apocalyptic number.

It is an amenable number.

30011221213 is a deficient number, since it is larger than the sum of its proper divisors (1543823867).

30011221213 is a wasteful number, since it uses less digits than its factorization.

30011221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16965167.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30011221213 its reverse (31212211003), we get a palindrome (61223432216).

The spelling of 30011221213 in words is "thirty billion, eleven million, two hundred twenty-one thousand, two hundred thirteen".