212021031322 has 8 divisors (see below), whose sum is σ = 318033621972. Its totient is φ = 106009824000.

The previous prime is 212021031241. The next prime is 212021031359. The reversal of 212021031322 is 223130120212.

It can be written as a sum of positive squares in 2 ways, for example, as 208274489641 + 3746541681 = 456371^2 + 61209^2 .

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 212021031322.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227322 + ... + 689722.

Almost surely, 2^212021031322 is an apocalyptic number.

212021031322 is a deficient number, since it is larger than the sum of its proper divisors (106012590650).

212021031322 is a wasteful number, since it uses less digits than its factorization.

212021031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691664.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212021031322 its reverse (223130120212), we get a palindrome (435151151534).

The spelling of 212021031322 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, three hundred twenty-two".