30220210021 has 8 divisors (see below), whose sum is σ = 32862677400. Its totient is φ = 27673832448.

The previous prime is 30220210001. The next prime is 30220210039. The reversal of 30220210021 is 12001202203.

It can be written as a sum of positive squares in 4 ways, for example, as 16618819396 + 13601390625 = 128914^2 + 116625^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30220210021 is a prime.

It is a super-2 number, since 2×30220210021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30220209983 and 30220210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220210001) 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, 24021796 + ... + 24023053.

It is an arithmetic number, because the mean of its divisors is an integer number (4107834675).

Almost surely, 2^30220210021 is an apocalyptic number.

It is an amenable number.

30220210021 is a deficient number, since it is larger than the sum of its proper divisors (2642467379).

30220210021 is a wasteful number, since it uses less digits than its factorization.

30220210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48044903.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30220210021 its reverse (12001202203), we get a palindrome (42221412224).

The spelling of 30220210021 in words is "thirty billion, two hundred twenty million, two hundred ten thousand, twenty-one".