2216103231 has 16 divisors (see below), whose sum is σ = 3052095488. Its totient is φ = 1428818400.

The previous prime is 2216103223. The next prime is 2216103233. The reversal of 2216103231 is 1323016122.

It is not a de Polignac number, because 2216103231 - 2³ = 2216103223 is a prime.

It is a super-2 number, since 2×2216103231² = 9822227060897278722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2216103198 and 2216103207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216103233) 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, 155070 + ... + 168756.

It is an arithmetic number, because the mean of its divisors is an integer number (190755968).

Almost surely, 2^2216103231 is an apocalyptic number.

2216103231 is a deficient number, since it is larger than the sum of its proper divisors (835992257).

2216103231 is a wasteful number, since it uses less digits than its factorization.

2216103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15462.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2216103231 is about 47075.5056372207. The cubic root of 2216103231 is about 1303.7570273130.

Adding to 2216103231 its reverse (1323016122), we get a palindrome (3539119353).

The spelling of 2216103231 in words is "two billion, two hundred sixteen million, one hundred three thousand, two hundred thirty-one".