212224044431 has 16 divisors (see below), whose sum is σ = 255329141760. Its totient is φ = 172317443040.

The previous prime is 212224044343. The next prime is 212224044449. The reversal of 212224044431 is 134440422212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212224044431 - 2¹⁰ = 212224043407 is a prime.

It is a super-2 number, since 2×212224044431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212224044394 and 212224044403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212224044451) 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, 1637450 + ... + 1762296.

It is an arithmetic number, because the mean of its divisors is an integer number (15958071360).

Almost surely, 2^212224044431 is an apocalyptic number.

212224044431 is a deficient number, since it is larger than the sum of its proper divisors (43105097329).

212224044431 is a wasteful number, since it uses less digits than its factorization.

212224044431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137654.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 212224044431 its reverse (134440422212), we get a palindrome (346664466643).

The spelling of 212224044431 in words is "two hundred twelve billion, two hundred twenty-four million, forty-four thousand, four hundred thirty-one".