212003221322 has 4 divisors (see below), whose sum is σ = 318004831986. Its totient is φ = 106001610660.

The previous prime is 212003221237. The next prime is 212003221343. The reversal of 212003221322 is 223122300212.

It is a happy number.

212003221322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 189643701361 + 22359519961 = 435481^2 + 149531^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212003221294 and 212003221303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53000805329 + ... + 53000805332.

Almost surely, 2^212003221322 is an apocalyptic number.

212003221322 is a deficient number, since it is larger than the sum of its proper divisors (106001610664).

212003221322 is a wasteful number, since it uses less digits than its factorization.

212003221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106001610663.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212003221322 its reverse (223122300212), we get a palindrome (435125521534).

The spelling of 212003221322 in words is "two hundred twelve billion, three million, two hundred twenty-one thousand, three hundred twenty-two".