12431551222101 has 16 divisors (see below), whose sum is σ = 18082317772800. Its totient is φ = 7534247863920.

The previous prime is 12431551222073. The next prime is 12431551222109. The reversal of 12431551222101 is 10122215513421.

12431551222101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12431551222101 - 2²¹ = 12431549124949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431551222109) 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, 14716266 + ... + 15538068.

It is an arithmetic number, because the mean of its divisors is an integer number (1130144860800).

Almost surely, 2^{12431551222101} is an apocalyptic number.

12431551222101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12431551222101 is a deficient number, since it is larger than the sum of its proper divisors (5650766550699).

12431551222101 is a wasteful number, since it uses less digits than its factorization.

12431551222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280216.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 12431551222101 its reverse (10122215513421), we get a palindrome (22553766735522).

The spelling of 12431551222101 in words is "twelve trillion, four hundred thirty-one billion, five hundred fifty-one million, two hundred twenty-two thousand, one hundred one".