220031220321 has 24 divisors (see below), whose sum is σ = 347744745504. Its totient is φ = 132956530560.

The previous prime is 220031220307. The next prime is 220031220323. The reversal of 220031220321 is 123022130022.

220031220321 is a `hidden beast` number, since 220 + 0 + 3 + 122 + 0 + 321 = 666.

It is not a de Polignac number, because 220031220321 - 2⁶ = 220031220257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220031220294 and 220031220303.

It is not an unprimeable number, because it can be changed into a prime (220031220323) 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, 3264171 + ... + 3330896.

It is an arithmetic number, because the mean of its divisors is an integer number (14489364396).

Almost surely, 2^220031220321 is an apocalyptic number.

It is an amenable number.

220031220321 is a deficient number, since it is larger than the sum of its proper divisors (127713525183).

220031220321 is a wasteful number, since it uses less digits than its factorization.

220031220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6595421 (or 6595418 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 220031220321 its reverse (123022130022), we get a palindrome (343053350343).

The spelling of 220031220321 in words is "two hundred twenty billion, thirty-one million, two hundred twenty thousand, three hundred twenty-one".