220131331012 has 12 divisors (see below), whose sum is σ = 385265637036. Its totient is φ = 110055434720.

The previous prime is 220131330971. The next prime is 220131331103. The reversal of 220131331012 is 210133131022.

It can be written as a sum of positive squares in 2 ways, for example, as 70380906436 + 149750424576 = 265294^2 + 386976^2 .

It is a super-2 number, since 2×220131331012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2509183 + ... + 2595430.

It is an arithmetic number, because the mean of its divisors is an integer number (32105469753).

Almost surely, 2^220131331012 is an apocalyptic number.

It is an amenable number.

220131331012 is a deficient number, since it is larger than the sum of its proper divisors (165134306024).

220131331012 is a wasteful number, since it uses less digits than its factorization.

220131331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115398 (or 5115396 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 220131331012 its reverse (210133131022), we get a palindrome (430264462034).

The spelling of 220131331012 in words is "two hundred twenty billion, one hundred thirty-one million, three hundred thirty-one thousand, twelve".