12212325143421 has 16 divisors (see below), whose sum is σ = 17535751571520. Its totient is φ = 7515231920640.

The previous prime is 12212325143411. The next prime is 12212325143429. The reversal of 12212325143421 is 12434152321221.

It is not a de Polignac number, because 12212325143421 - 2³⁰ = 12211251401597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212325143429) 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, 6362541 + ... + 8056461.

It is an arithmetic number, because the mean of its divisors is an integer number (1095984473220).

Almost surely, 2^{12212325143421} is an apocalyptic number.

It is an amenable number.

12212325143421 is a deficient number, since it is larger than the sum of its proper divisors (5323426428099).

12212325143421 is a wasteful number, since it uses less digits than its factorization.

12212325143421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878796.

The product of its digits is 23040, while the sum is 33.

Adding to 12212325143421 its reverse (12434152321221), we get a palindrome (24646477464642).

The spelling of 12212325143421 in words is "twelve trillion, two hundred twelve billion, three hundred twenty-five million, one hundred forty-three thousand, four hundred twenty-one".