220320131021 has 8 divisors (see below), whose sum is σ = 220475558688. Its totient is φ = 220164750000.

The previous prime is 220320130999. The next prime is 220320131023. The reversal of 220320131021 is 120131023022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220320131021 - 2⁶ = 220320130957 is a prime.

It is a super-2 number, since 2×220320131021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220320131023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19576646 + ... + 19587896.

It is an arithmetic number, because the mean of its divisors is an integer number (27559444836).

Almost surely, 2^220320131021 is an apocalyptic number.

It is an amenable number.

220320131021 is a deficient number, since it is larger than the sum of its proper divisors (155427667).

220320131021 is a wasteful number, since it uses less digits than its factorization.

220320131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23323.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 220320131021 its reverse (120131023022), we get a palindrome (340451154043).

The spelling of 220320131021 in words is "two hundred twenty billion, three hundred twenty million, one hundred thirty-one thousand, twenty-one".