30221203210220 has 24 divisors (see below), whose sum is σ = 69234029173008. Its totient is φ = 10989528440000.

The previous prime is 30221203210199. The next prime is 30221203210223. The reversal of 30221203210220 is 2201230212203.

It is a happy number.

It is a super-2 number, since 2×30221203210220² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30221203210192 and 30221203210201.

It is not an unprimeable number, because it can be changed into a prime (30221203210223) 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, 68684552531 + ... + 68684552970.

It is an arithmetic number, because the mean of its divisors is an integer number (2884751215542).

Almost surely, 2^{30221203210220} is an apocalyptic number.

It is an amenable number.

30221203210220 is an abundant number, since it is smaller than the sum of its proper divisors (39012825962788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221203210220 is a wasteful number, since it uses less digits than its factorization.

30221203210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137369105521 (or 137369105519 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30221203210220 its reverse (2201230212203), we get a palindrome (32422433422423).

The spelling of 30221203210220 in words is "thirty trillion, two hundred twenty-one billion, two hundred three million, two hundred ten thousand, two hundred twenty".