221073324260 has 12 divisors (see below), whose sum is σ = 464253980988. Its totient is φ = 88429329696.

The previous prime is 221073324239. The next prime is 221073324301. The reversal of 221073324260 is 62423370122.

It can be written as a sum of positive squares in 2 ways, for example, as 111210244324 + 109863079936 = 333482^2 + 331456^2 .

It is an unprimeable number.

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, 5526833087 + ... + 5526833126.

It is an arithmetic number, because the mean of its divisors is an integer number (38687831749).

Almost surely, 2^221073324260 is an apocalyptic number.

221073324260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221073324260 is an abundant number, since it is smaller than the sum of its proper divisors (243180656728).

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

221073324260 is a wasteful number, since it uses less digits than its factorization.

221073324260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11053666222 (or 11053666220 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

Adding to 221073324260 its reverse (62423370122), we get a palindrome (283496694382).

The spelling of 221073324260 in words is "two hundred twenty-one billion, seventy-three million, three hundred twenty-four thousand, two hundred sixty".