212335440104 has 8 divisors (see below), whose sum is σ = 398128950210. Its totient is φ = 106167720048.

The previous prime is 212335440103. The next prime is 212335440131. The reversal of 212335440104 is 401044533212.

It can be written as a sum of positive squares in only one way, i.e., 183775116100 + 28560324004 = 428690^2 + 168998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (212335440103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13270964999 + ... + 13270965014.

Almost surely, 2^212335440104 is an apocalyptic number.

It is an amenable number.

212335440104 is a deficient number, since it is larger than the sum of its proper divisors (185793510106).

212335440104 is a wasteful number, since it uses less digits than its factorization.

212335440104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26541930019 (or 26541930015 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 212335440104 its reverse (401044533212), we get a palindrome (613379973316).

The spelling of 212335440104 in words is "two hundred twelve billion, three hundred thirty-five million, four hundred forty thousand, one hundred four".