221232003020 has 48 divisors (see below), whose sum is σ = 554041893888. Its totient is φ = 72553103040.

The previous prime is 221232002987. The next prime is 221232003059. The reversal of 221232003020 is 20300232122.

It is a self number, because there is not a number n which added to its sum of digits gives 221232003020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34349576 + ... + 34356015.

It is an arithmetic number, because the mean of its divisors is an integer number (11542539456).

Almost surely, 2^221232003020 is an apocalyptic number.

221232003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221232003020 is an abundant number, since it is smaller than the sum of its proper divisors (332809890868).

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

221232003020 is a wasteful number, since it uses less digits than its factorization.

221232003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68705630 (or 68705628 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 221232003020 its reverse (20300232122), we get a palindrome (241532235142).

The spelling of 221232003020 in words is "two hundred twenty-one billion, two hundred thirty-two million, three thousand, twenty".