30220330021 has 12 divisors (see below), whose sum is σ = 35649396000. Its totient is φ = 25538304120.

The previous prime is 30220330009. The next prime is 30220330031. The reversal of 30220330021 is 12003302203.

It is not a de Polignac number, because 30220330021 - 2²⁵ = 30186775589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30220329977 and 30220330004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220330031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4339771 + ... + 4346728.

It is an arithmetic number, because the mean of its divisors is an integer number (2970783000).

Almost surely, 2^30220330021 is an apocalyptic number.

It is an amenable number.

30220330021 is a deficient number, since it is larger than the sum of its proper divisors (5429065979).

30220330021 is an equidigital number, since it uses as much as digits as its factorization.

30220330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8686584 (or 8686577 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30220330021 its reverse (12003302203), we get a palindrome (42223632224).

The spelling of 30220330021 in words is "thirty billion, two hundred twenty million, three hundred thirty thousand, twenty-one".