220120220323221 has 16 divisors (see below), whose sum is σ = 308096098437120. Its totient is φ = 139606044597360.

The previous prime is 220120220323063. The next prime is 220120220323249. The reversal of 220120220323221 is 122323022021022.

It is not a de Polignac number, because 220120220323221 - 2¹¹ = 220120220321173 is a prime.

It is a super-2 number, since 2×220120220323221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220120220323191 and 220120220323200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120220393221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20058334255 + ... + 20058345228.

It is an arithmetic number, because the mean of its divisors is an integer number (19256006152320).

Almost surely, 2^{220120220323221} is an apocalyptic number.

It is an amenable number.

220120220323221 is a deficient number, since it is larger than the sum of its proper divisors (87975878113899).

220120220323221 is a wasteful number, since it uses less digits than its factorization.

220120220323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40116679576.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 220120220323221 its reverse (122323022021022), we get a palindrome (342443242344243).

The spelling of 220120220323221 in words is "two hundred twenty trillion, one hundred twenty billion, two hundred twenty million, three hundred twenty-three thousand, two hundred twenty-one".