12205522100501 has 16 divisors (see below), whose sum is σ = 12657025920000. Its totient is φ = 11757692989440.

The previous prime is 12205522100489. The next prime is 12205522100503. The reversal of 12205522100501 is 10500122550221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12205522100501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205522100503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10998875 + ... + 12057623.

It is an arithmetic number, because the mean of its divisors is an integer number (791064120000).

Almost surely, 2^{12205522100501} is an apocalyptic number.

It is an amenable number.

12205522100501 is a deficient number, since it is larger than the sum of its proper divisors (451503819499).

12205522100501 is a wasteful number, since it uses less digits than its factorization.

12205522100501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060484.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 12205522100501 its reverse (10500122550221), we get a palindrome (22705644650722).

The spelling of 12205522100501 in words is "twelve trillion, two hundred five billion, five hundred twenty-two million, one hundred thousand, five hundred one".