221441024220 has 96 divisors (see below), whose sum is σ = 667961743680. Its totient is φ = 54489630720.

The previous prime is 221441024209. The next prime is 221441024221. The reversal of 221441024220 is 22420144122.

It is a happy number.

It is a super-2 number, since 2×221441024220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221441024221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2268010 + ... + 2363630.

It is an arithmetic number, because the mean of its divisors is an integer number (6957934830).

Almost surely, 2^221441024220 is an apocalyptic number.

221441024220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221441024220 is an abundant number, since it is smaller than the sum of its proper divisors (446520719460).

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

221441024220 is a wasteful number, since it uses less digits than its factorization.

221441024220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98615 (or 98613 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 221441024220 its reverse (22420144122), we get a palindrome (243861168342).

The spelling of 221441024220 in words is "two hundred twenty-one billion, four hundred forty-one million, twenty-four thousand, two hundred twenty".