220223210031 has 24 divisors (see below), whose sum is σ = 347092448976. Its totient is φ = 133440128640.

The previous prime is 220223210023. The next prime is 220223210069. The reversal of 220223210031 is 130012322022.

It is not a de Polignac number, because 220223210031 - 2³ = 220223210023 is a prime.

It is a super-2 number, since 2×220223210031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220223209986 and 220223210013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220223210231) 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, 233571 + ... + 703563.

It is an arithmetic number, because the mean of its divisors is an integer number (14462185374).

Almost surely, 2^220223210031 is an apocalyptic number.

220223210031 is a deficient number, since it is larger than the sum of its proper divisors (126869238945).

220223210031 is a wasteful number, since it uses less digits than its factorization.

220223210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474743 (or 474740 counting only the distinct ones).

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

Adding to 220223210031 its reverse (130012322022), we get a palindrome (350235532053).

The spelling of 220223210031 in words is "two hundred twenty billion, two hundred twenty-three million, two hundred ten thousand, thirty-one".