30000220989 has 4 divisors (see below), whose sum is σ = 40000294656. Its totient is φ = 20000147324.

The previous prime is 30000220967. The next prime is 30000220993. The reversal of 30000220989 is 98902200003.

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 30000220989 - 2⁹ = 30000220477 is a prime.

It is a super-2 number, since 2×30000220989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000220949) 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, 5000036829 + ... + 5000036834.

It is an arithmetic number, because the mean of its divisors is an integer number (10000073664).

Almost surely, 2^30000220989 is an apocalyptic number.

It is an amenable number.

30000220989 is a deficient number, since it is larger than the sum of its proper divisors (10000073667).

30000220989 is a wasteful number, since it uses less digits than its factorization.

30000220989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000073666.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 30000220989 in words is "thirty billion, two hundred twenty thousand, nine hundred eighty-nine".