12145215310 has 32 divisors (see below), whose sum is σ = 23162853312. Its totient is φ = 4569254400.

The previous prime is 12145215217. The next prime is 12145215311. The reversal of 12145215310 is 1351254121.

It is a super-2 number, since 2×12145215310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145215311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239160 + ... + 285460.

It is an arithmetic number, because the mean of its divisors is an integer number (723839166).

Almost surely, 2^12145215310 is an apocalyptic number.

12145215310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12145215310 is a deficient number, since it is larger than the sum of its proper divisors (11017638002).

12145215310 is a wasteful number, since it uses less digits than its factorization.

12145215310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47868.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 12145215310 its reverse (1351254121), we get a palindrome (13496469431).

The spelling of 12145215310 in words is "twelve billion, one hundred forty-five million, two hundred fifteen thousand, three hundred ten".