220445535321 has 24 divisors (see below), whose sum is σ = 348160063680. Its totient is φ = 133298992800.

The previous prime is 220445535301. The next prime is 220445535329. The reversal of 220445535321 is 123535544022.

It is not a de Polignac number, because 220445535321 - 2⁹ = 220445534809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220445535329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2492670 + ... + 2579591.

It is an arithmetic number, because the mean of its divisors is an integer number (14506669320).

Almost surely, 2^220445535321 is an apocalyptic number.

It is an amenable number.

220445535321 is a deficient number, since it is larger than the sum of its proper divisors (127714528359).

220445535321 is a wasteful number, since it uses less digits than its factorization.

220445535321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072717 (or 5072714 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 220445535321 in words is "two hundred twenty billion, four hundred forty-five million, five hundred thirty-five thousand, three hundred twenty-one".