211224541042 has 8 divisors (see below), whose sum is σ = 316838832300. Its totient is φ = 105611596944.

The previous prime is 211224541039. The next prime is 211224541043. The reversal of 211224541042 is 240145422112.

It can be written as a sum of positive squares in 2 ways, for example, as 209609224561 + 1615316481 = 457831^2 + 40191^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 211224541042.

It is not an unprimeable number, because it can be changed into a prime (211224541043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284184 + ... + 709372.

Almost surely, 2^211224541042 is an apocalyptic number.

211224541042 is a deficient number, since it is larger than the sum of its proper divisors (105614291258).

211224541042 is a wasteful number, since it uses less digits than its factorization.

211224541042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673580.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 211224541042 its reverse (240145422112), we get a palindrome (451369963154).

The spelling of 211224541042 in words is "two hundred eleven billion, two hundred twenty-four million, five hundred forty-one thousand, forty-two".