221002313200 has 30 divisors (see below), whose sum is σ = 530958058424. Its totient is φ = 88400925120.

The previous prime is 221002313183. The next prime is 221002313237. The reversal of 221002313200 is 2313200122.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276252492 + ... + 276253291.

Almost surely, 2^221002313200 is an apocalyptic number.

221002313200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002313200 is an abundant number, since it is smaller than the sum of its proper divisors (309955745224).

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

221002313200 is a wasteful number, since it uses less digits than its factorization.

221002313200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552505801 (or 552505790 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 221002313200 its reverse (2313200122), we get a palindrome (223315513322).

The spelling of 221002313200 in words is "two hundred twenty-one billion, two million, three hundred thirteen thousand, two hundred".