23212218107 has 12 divisors (see below), whose sum is σ = 25669922400. Its totient is φ = 20970769248.

The previous prime is 23212218103. The next prime is 23212218131. The reversal of 23212218107 is 70181221232.

It is not a de Polignac number, because 23212218107 - 2² = 23212218103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23212218107.

It is not an unprimeable number, because it can be changed into a prime (23212218103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1453232 + ... + 1469117.

It is an arithmetic number, because the mean of its divisors is an integer number (2139160200).

Almost surely, 2^23212218107 is an apocalyptic number.

23212218107 is a deficient number, since it is larger than the sum of its proper divisors (2457704293).

23212218107 is a wasteful number, since it uses less digits than its factorization.

23212218107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922422 (or 2922409 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 23212218107 its reverse (70181221232), we get a palindrome (93393439339).

The spelling of 23212218107 in words is "twenty-three billion, two hundred twelve million, two hundred eighteen thousand, one hundred seven".