220001233131 has 12 divisors (see below), whose sum is σ = 320925892560. Its totient is φ = 145215334800.

The previous prime is 220001233061. The next prime is 220001233157. The reversal of 220001233131 is 131332100022.

220001233131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-220001233131 is a prime.

It is a super-2 number, since 2×220001233131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220001233181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121011871 + ... + 121013688.

It is an arithmetic number, because the mean of its divisors is an integer number (26743824380).

Almost surely, 2^220001233131 is an apocalyptic number.

220001233131 is a deficient number, since it is larger than the sum of its proper divisors (100924659429).

220001233131 is a wasteful number, since it uses less digits than its factorization.

220001233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242025666 (or 242025663 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 220001233131 its reverse (131332100022), we get a palindrome (351333333153).

The spelling of 220001233131 in words is "two hundred twenty billion, one million, two hundred thirty-three thousand, one hundred thirty-one".