221300002020 has 24 divisors (see below), whose sum is σ = 619640005824. Its totient is φ = 59013333856.

The previous prime is 221300001983. The next prime is 221300002031. The reversal of 221300002020 is 20200003122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 221300001987 and 221300002005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1844166624 + ... + 1844166743.

It is an arithmetic number, because the mean of its divisors is an integer number (25818333576).

Almost surely, 2^221300002020 is an apocalyptic number.

221300002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221300002020 is an abundant number, since it is smaller than the sum of its proper divisors (398340003804).

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

221300002020 is a wasteful number, since it uses less digits than its factorization.

221300002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688333379 (or 3688333377 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 221300002020 its reverse (20200003122), we get a palindrome (241500005142).

The spelling of 221300002020 in words is "two hundred twenty-one billion, three hundred million, two thousand, twenty".