212021113330 has 32 divisors (see below), whose sum is σ = 411246252144. Its totient is φ = 78236818176.

The previous prime is 212021113321. The next prime is 212021113351. The reversal of 212021113330 is 33311120212.

It can be written as a sum of positive squares in 8 ways, for example, as 65551872961 + 146469240369 = 256031^2 + 382713^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212021113298 and 212021113307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285337 + ... + 710956.

Almost surely, 2^212021113330 is an apocalyptic number.

212021113330 is a deficient number, since it is larger than the sum of its proper divisors (199225138814).

212021113330 is a wasteful number, since it uses less digits than its factorization.

212021113330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997950.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212021113330 its reverse (33311120212), we get a palindrome (245332233542).

The spelling of 212021113330 in words is "two hundred twelve billion, twenty-one million, one hundred thirteen thousand, three hundred thirty".