221332011000 has 64 divisors (see below), whose sum is σ = 690555883680. Its totient is φ = 59021868800.

The previous prime is 221332010993. The next prime is 221332011029. The reversal of 221332011000 is 110233122.

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, 36885669 + ... + 36891668.

Almost surely, 2^221332011000 is an apocalyptic number.

221332011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221332011000 is an abundant number, since it is smaller than the sum of its proper divisors (469223872680).

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

221332011000 is a wasteful number, since it uses less digits than its factorization.

221332011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73777361 (or 73777347 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 221332011000 its reverse (110233122), we get a palindrome (221442244122).

The spelling of 221332011000 in words is "two hundred twenty-one billion, three hundred thirty-two million, eleven thousand".