30222020021 has 8 divisors (see below), whose sum is σ = 30543053400. Its totient is φ = 29901414400.

The previous prime is 30222019981. The next prime is 30222020057. The reversal of 30222020021 is 12002022203.

It can be written as a sum of positive squares in 4 ways, for example, as 5492884996 + 24729135025 = 74114^2 + 157255^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30222020021 - 2⁶ = 30222019957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30222019978 and 30222020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222028021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36125 + ... + 248493.

It is an arithmetic number, because the mean of its divisors is an integer number (3817881675).

Almost surely, 2^30222020021 is an apocalyptic number.

It is an amenable number.

30222020021 is a deficient number, since it is larger than the sum of its proper divisors (321033379).

30222020021 is a wasteful number, since it uses less digits than its factorization.

30222020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213879.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 30222020021 its reverse (12002022203), we get a palindrome (42224042224).

The spelling of 30222020021 in words is "thirty billion, two hundred twenty-two million, twenty thousand, twenty-one".