221440220322 has 32 divisors (see below), whose sum is σ = 466261958400. Its totient is φ = 69917687568.

The previous prime is 221440220297. The next prime is 221440220399. The reversal of 221440220322 is 223022044122.

It is a super-3 number, since 3×221440220322³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221440220292 and 221440220301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607833 + ... + 901299.

It is an arithmetic number, because the mean of its divisors is an integer number (14570686200).

Almost surely, 2^221440220322 is an apocalyptic number.

221440220322 is an abundant number, since it is smaller than the sum of its proper divisors (244821738078).

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

221440220322 is a wasteful number, since it uses less digits than its factorization.

221440220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300110.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 221440220322 its reverse (223022044122), we get a palindrome (444462264444).

The spelling of 221440220322 in words is "two hundred twenty-one billion, four hundred forty million, two hundred twenty thousand, three hundred twenty-two".