220616112031 has 16 divisors (see below), whose sum is σ = 261027417600. Its totient is φ = 182438510688.

The previous prime is 220616112029. The next prime is 220616112097. The reversal of 220616112031 is 130211616022.

It is a happy number.

It is not a de Polignac number, because 220616112031 - 2¹ = 220616112029 is a prime.

It is a super-2 number, since 2×220616112031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220616111987 and 220616112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220616112331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152521 + ... + 681538.

It is an arithmetic number, because the mean of its divisors is an integer number (16314213600).

Almost surely, 2^220616112031 is an apocalyptic number.

220616112031 is a deficient number, since it is larger than the sum of its proper divisors (40411305569).

220616112031 is a wasteful number, since it uses less digits than its factorization.

220616112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835398.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 220616112031 its reverse (130211616022), we get a palindrome (350827728053).

The spelling of 220616112031 in words is "two hundred twenty billion, six hundred sixteen million, one hundred twelve thousand, thirty-one".