212204144231 has 8 divisors (see below), whose sum is σ = 214327934928. Its totient is φ = 210080800000.

The previous prime is 212204144219. The next prime is 212204144237. The reversal of 212204144231 is 132441402212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212204144231 is a prime.

It is a super-2 number, since 2×212204144231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212204144231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212204144237) 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, 888311 + ... + 1101591.

It is an arithmetic number, because the mean of its divisors is an integer number (26790991866).

Almost surely, 2^212204144231 is an apocalyptic number.

212204144231 is a deficient number, since it is larger than the sum of its proper divisors (2123790697).

212204144231 is a wasteful number, since it uses less digits than its factorization.

212204144231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223233.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 212204144231 its reverse (132441402212), we get a palindrome (344645546443).

The spelling of 212204144231 in words is "two hundred twelve billion, two hundred four million, one hundred forty-four thousand, two hundred thirty-one".