12201423451 has 8 divisors (see below), whose sum is σ = 14135504864. Its totient is φ = 10315097280.

The previous prime is 12201423449. The next prime is 12201423587. The reversal of 12201423451 is 15432410221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12201423451 - 2¹ = 12201423449 is a prime.

It is a super-2 number, since 2×12201423451² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201427451) 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, 11938260 + ... + 11939281.

It is an arithmetic number, because the mean of its divisors is an integer number (1766938108).

Almost surely, 2^12201423451 is an apocalyptic number.

12201423451 is a deficient number, since it is larger than the sum of its proper divisors (1934081413).

12201423451 is an equidigital number, since it uses as much as digits as its factorization.

12201423451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23877621.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12201423451 its reverse (15432410221), we get a palindrome (27633833672).

The spelling of 12201423451 in words is "twelve billion, two hundred one million, four hundred twenty-three thousand, four hundred fifty-one".