221020300320000 has 180 divisors, whose sum is σ = 735060107221440. Its totient is φ = 58938746624000.

The previous prime is 221020300319933. The next prime is 221020300320013. The reversal of 221020300320000 is 23003020122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 229749480 + ... + 230709479.

Almost surely, 2^{221020300320000} is an apocalyptic number.

221020300320000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221020300320000 is an abundant number, since it is smaller than the sum of its proper divisors (514039806901440).

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

221020300320000 is an frugal number, since it uses more digits than its factorization.

221020300320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460458998 (or 460458969 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 221020300320000 its reverse (23003020122), we get a palindrome (221043303340122).

The spelling of 221020300320000 in words is "two hundred twenty-one trillion, twenty billion, three hundred million, three hundred twenty thousand".