221030232000 has 112 divisors (see below), whose sum is σ = 729841905312. Its totient is φ = 58941388800.

The previous prime is 221030231999. The next prime is 221030232019. The reversal of 221030232000 is 232030122.

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 15 ways as a sum of consecutive naturals, for example, 4580797 + ... + 4628796.

Almost surely, 2^221030232000 is an apocalyptic number.

221030232000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221030232000 is an abundant number, since it is smaller than the sum of its proper divisors (508811673312).

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

221030232000 is an equidigital number, since it uses as much as digits as its factorization.

221030232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9209623 (or 9209603 counting only the distinct ones).

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

Adding to 221030232000 its reverse (232030122), we get a palindrome (221262262122).

The spelling of 221030232000 in words is "two hundred twenty-one billion, thirty million, two hundred thirty-two thousand".