212421031344231 has 8 divisors (see below), whose sum is σ = 288571967109360. Its totient is φ = 138942058237632.

The previous prime is 212421031344227. The next prime is 212421031344271. The reversal of 212421031344231 is 132443130124212.

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

It is not a de Polignac number, because 212421031344231 - 2² = 212421031344227 is a prime.

It is a super-2 number, since 2×212421031344231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212421031344192 and 212421031344201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212421031344271) 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, 667990664446 + ... + 667990664763.

It is an arithmetic number, because the mean of its divisors is an integer number (36071495888670).

Almost surely, 2^{212421031344231} is an apocalyptic number.

212421031344231 is a deficient number, since it is larger than the sum of its proper divisors (76150935765129).

212421031344231 is a wasteful number, since it uses less digits than its factorization.

212421031344231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335981329265.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 212421031344231 its reverse (132443130124212), we get a palindrome (344864161468443).

The spelling of 212421031344231 in words is "two hundred twelve trillion, four hundred twenty-one billion, thirty-one million, three hundred forty-four thousand, two hundred thirty-one".