212103550504 has 32 divisors (see below), whose sum is σ = 408553165800. Its totient is φ = 103157591040.

The previous prime is 212103550441. The next prime is 212103550543. The reversal of 212103550504 is 405055301212.

It can be written as a sum of positive squares in 4 ways, for example, as 180633500100 + 31470050404 = 425010^2 + 177398^2 .

It is a super-2 number, since 2×212103550504² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1020564 + ... + 1210684.

Almost surely, 2^212103550504 is an apocalyptic number.

It is an amenable number.

212103550504 is a deficient number, since it is larger than the sum of its proper divisors (196449615296).

212103550504 is a wasteful number, since it uses less digits than its factorization.

212103550504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193933 (or 193929 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 212103550504 its reverse (405055301212), we get a palindrome (617158851716).

The spelling of 212103550504 in words is "two hundred twelve billion, one hundred three million, five hundred fifty thousand, five hundred four".