30002213121 has 4 divisors (see below), whose sum is σ = 40002950832. Its totient is φ = 20001475412.

The previous prime is 30002213077. The next prime is 30002213147. The reversal of 30002213121 is 12131220003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30002213121 - 2¹⁷ = 30002082049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30002213121.

It is not an unprimeable number, because it can be changed into a prime (30002213621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000368851 + ... + 5000368856.

It is an arithmetic number, because the mean of its divisors is an integer number (10000737708).

Almost surely, 2^30002213121 is an apocalyptic number.

It is an amenable number.

30002213121 is a deficient number, since it is larger than the sum of its proper divisors (10000737711).

30002213121 is a wasteful number, since it uses less digits than its factorization.

30002213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000737710.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30002213121 its reverse (12131220003), we get a palindrome (42133433124).

The spelling of 30002213121 in words is "thirty billion, two million, two hundred thirteen thousand, one hundred twenty-one".