221053696960 has 28 divisors (see below), whose sum is σ = 526384116648. Its totient is φ = 88421478656.

The previous prime is 221053696951. The next prime is 221053696961. The reversal of 221053696960 is 69696350122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221053696961) 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 3 ways as a sum of consecutive naturals, for example, 345396082 + ... + 345396721.

Almost surely, 2^221053696960 is an apocalyptic number.

221053696960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221053696960 is an abundant number, since it is smaller than the sum of its proper divisors (305330419688).

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

221053696960 is an equidigital number, since it uses as much as digits as its factorization.

221053696960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690792820 (or 690792810 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 221053696960 in words is "two hundred twenty-one billion, fifty-three million, six hundred ninety-six thousand, nine hundred sixty".