221038890360 has 64 divisors (see below), whose sum is σ = 663349802400. Its totient is φ = 58922981376.

The previous prime is 221038890337. The next prime is 221038890367. The reversal of 221038890360 is 63098830122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221038890367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20476 + ... + 665204.

Almost surely, 2^221038890360 is an apocalyptic number.

221038890360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221038890360 is an abundant number, since it is smaller than the sum of its proper divisors (442310912040).

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

221038890360 is a wasteful number, since it uses less digits than its factorization.

221038890360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647600 (or 647596 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 221038890360 in words is "two hundred twenty-one billion, thirty-eight million, eight hundred ninety thousand, three hundred sixty".