12122102012240 has 40 divisors (see below), whose sum is σ = 30746058742368. Its totient is φ = 4408037095040.

The previous prime is 12122102012239. The next prime is 12122102012243. The reversal of 12122102012240 is 4221020122121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122102012243) 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 7 ways as a sum of consecutive naturals, for example, 6887557082 + ... + 6887558841.

Almost surely, 2^{12122102012240} is an apocalyptic number.

12122102012240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122102012240 is an abundant number, since it is smaller than the sum of its proper divisors (18623956730128).

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

12122102012240 is a wasteful number, since it uses less digits than its factorization.

12122102012240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13775115947 (or 13775115941 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12122102012240 its reverse (4221020122121), we get a palindrome (16343122134361).

The spelling of 12122102012240 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twelve thousand, two hundred forty".