221120202000 has 80 divisors (see below), whose sum is σ = 712891550592. Its totient is φ = 58965385600.

The previous prime is 221120201959. The next prime is 221120202013. The reversal of 221120202000 is 202021122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 18420684 + ... + 18432683.

Almost surely, 2^221120202000 is an apocalyptic number.

221120202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221120202000 is an abundant number, since it is smaller than the sum of its proper divisors (491771348592).

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

221120202000 is a wasteful number, since it uses less digits than its factorization.

221120202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36853393 (or 36853377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 221120202000 its reverse (202021122), we get a palindrome (221322223122).

The spelling of 221120202000 in words is "two hundred twenty-one billion, one hundred twenty million, two hundred two thousand".