212603222450 has 24 divisors (see below), whose sum is σ = 405086924340. Its totient is φ = 82967110400.

The previous prime is 212603222437. The next prime is 212603222519. The reversal of 212603222450 is 54222306212.

It can be written as a sum of positive squares in 6 ways, for example, as 27932771161 + 184670451289 = 167131^2 + 429733^2 .

It is a super-2 number, since 2×212603222450² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51852395 + ... + 51856494.

Almost surely, 2^212603222450 is an apocalyptic number.

212603222450 is a deficient number, since it is larger than the sum of its proper divisors (192483701890).

212603222450 is a wasteful number, since it uses less digits than its factorization.

212603222450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103708942 (or 103708937 counting only the distinct ones).

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

Adding to 212603222450 its reverse (54222306212), we get a palindrome (266825528662).

The spelling of 212603222450 in words is "two hundred twelve billion, six hundred three million, two hundred twenty-two thousand, four hundred fifty".