12212421431 has 8 divisors (see below), whose sum is σ = 13965949824. Its totient is φ = 10461117240.

The previous prime is 12212421407. The next prime is 12212421503. The reversal of 12212421431 is 13412421221.

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

It is not a de Polignac number, because 12212421431 - 2²² = 12208227127 is a prime.

It is a super-2 number, since 2×12212421431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212421397 and 12212421406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212421031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544265 + ... + 566258.

It is an arithmetic number, because the mean of its divisors is an integer number (1745743728).

Almost surely, 2^12212421431 is an apocalyptic number.

12212421431 is a deficient number, since it is larger than the sum of its proper divisors (1753528393).

12212421431 is a wasteful number, since it uses less digits than its factorization.

12212421431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112101.

The product of its digits is 768, while the sum is 23.

Adding to 12212421431 its reverse (13412421221), we get a palindrome (25624842652).

The spelling of 12212421431 in words is "twelve billion, two hundred twelve million, four hundred twenty-one thousand, four hundred thirty-one".