212021120211 has 32 divisors (see below), whose sum is σ = 289571315712. Its totient is φ = 137957437440.

The previous prime is 212021120093. The next prime is 212021120249. The reversal of 212021120211 is 112021120212.

It is not a de Polignac number, because 212021120211 - 2⁹ = 212021119699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212021120711) 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, 8059866 + ... + 8086128.

It is an arithmetic number, because the mean of its divisors is an integer number (9049103616).

Almost surely, 2^212021120211 is an apocalyptic number.

212021120211 is a deficient number, since it is larger than the sum of its proper divisors (77550195501).

212021120211 is a wasteful number, since it uses less digits than its factorization.

212021120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26723.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212021120211 its reverse (112021120212), we get a palindrome (324042240423).

Subtracting from 212021120211 its reverse (112021120212), we obtain a palindrome (99999999999).

The spelling of 212021120211 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, two hundred eleven".