221240203000 has 128 divisors (see below), whose sum is σ = 530516226240. Its totient is φ = 86311680000.

The previous prime is 221240202961. The next prime is 221240203027. The reversal of 221240203000 is 302042122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32719620 + ... + 32726380.

Almost surely, 2^221240203000 is an apocalyptic number.

221240203000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221240203000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265258113120).

221240203000 is an abundant number, since it is smaller than the sum of its proper divisors (309276023240).

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

221240203000 is a wasteful number, since it uses less digits than its factorization.

221240203000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7586 (or 7572 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 221240203000 its reverse (302042122), we get a palindrome (221542245122).

The spelling of 221240203000 in words is "two hundred twenty-one billion, two hundred forty million, two hundred three thousand".