105305146212 has 24 divisors (see below), whose sum is σ = 280813723456. Its totient is φ = 30087184608.

The previous prime is 105305146201. The next prime is 105305146213. The reversal of 105305146212 is 212641503501.

It is a super-2 number, since 2×105305146212² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105305146212.

It is not an unprimeable number, because it can be changed into a prime (105305146213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626816263 + ... + 626816430.

Almost surely, 2^105305146212 is an apocalyptic number.

105305146212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105305146212 is an abundant number, since it is smaller than the sum of its proper divisors (175508577244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105305146212 is a wasteful number, since it uses less digits than its factorization.

105305146212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253632707 (or 1253632705 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 105305146212 its reverse (212641503501), we get a palindrome (317946649713).

The spelling of 105305146212 in words is "one hundred five billion, three hundred five million, one hundred forty-six thousand, two hundred twelve".