30022213021 has 4 divisors (see below), whose sum is σ = 30062620512. Its totient is φ = 29981805532.

The previous prime is 30022213019. The next prime is 30022213049. The reversal of 30022213021 is 12031222003.

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 30022213021 - 2¹ = 30022213019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30022212986 and 30022213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30022213321) 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, 20202631 + ... + 20204116.

It is an arithmetic number, because the mean of its divisors is an integer number (7515655128).

Almost surely, 2^30022213021 is an apocalyptic number.

It is an amenable number.

30022213021 is a deficient number, since it is larger than the sum of its proper divisors (40407491).

30022213021 is an equidigital number, since it uses as much as digits as its factorization.

30022213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40407490.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30022213021 its reverse (12031222003), we get a palindrome (42053435024).

The spelling of 30022213021 in words is "thirty billion, twenty-two million, two hundred thirteen thousand, twenty-one".