211011213321 has 32 divisors (see below), whose sum is σ = 331029607680. Its totient is φ = 132386542848.

The previous prime is 211011213277. The next prime is 211011213331. The reversal of 211011213321 is 123312110112.

211011213321 is a `hidden beast` number, since 211 + 0 + 1 + 121 + 332 + 1 = 666.

It is not a de Polignac number, because 211011213321 - 2¹¹ = 211011211273 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211011213294 and 211011213303.

It is not an unprimeable number, because it can be changed into a prime (211011213331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7884655 + ... + 7911371.

It is an arithmetic number, because the mean of its divisors is an integer number (10344675240).

Almost surely, 2^211011213321 is an apocalyptic number.

It is an amenable number.

211011213321 is a deficient number, since it is larger than the sum of its proper divisors (120018394359).

211011213321 is a wasteful number, since it uses less digits than its factorization.

211011213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43950 (or 43944 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211011213321 its reverse (123312110112), we get a palindrome (334323323433).

The spelling of 211011213321 in words is "two hundred eleven billion, eleven million, two hundred thirteen thousand, three hundred twenty-one".