106218122231 has 6 divisors (see below), whose sum is σ = 115017256800. Its totient is φ = 98047497288.

The previous prime is 106218122207. The next prime is 106218122243. The reversal of 106218122231 is 132221812601.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-106218122231 is a prime.

It is a super-2 number, since 2×106218122231² (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 = 106218122194 and 106218122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106218125231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314254631 + ... + 314254968.

It is an arithmetic number, because the mean of its divisors is an integer number (19169542800).

Almost surely, 2^106218122231 is an apocalyptic number.

106218122231 is a deficient number, since it is larger than the sum of its proper divisors (8799134569).

106218122231 is an equidigital number, since it uses as much as digits as its factorization.

106218122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628509625 (or 628509612 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 106218122231 its reverse (132221812601), we get a palindrome (238439934832).

The spelling of 106218122231 in words is "one hundred six billion, two hundred eighteen million, one hundred twenty-two thousand, two hundred thirty-one".