212212021210011 has 24 divisors (see below), whose sum is σ = 314814698948880. Its totient is φ = 137650310369856.

The previous prime is 212212021210003. The next prime is 212212021210039. The reversal of 212212021210011 is 110012120212212.

212212021210011 is a `hidden beast` number, since 21 + 221 + 202 + 1 + 210 + 0 + 11 = 666.

It is not a de Polignac number, because 212212021210011 - 2³ = 212212021210003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212212021210001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65116945 + ... + 68298173.

It is an arithmetic number, because the mean of its divisors is an integer number (13117279122870).

Almost surely, 2^{212212021210011} is an apocalyptic number.

212212021210011 is a deficient number, since it is larger than the sum of its proper divisors (102602677738869).

212212021210011 is a wasteful number, since it uses less digits than its factorization.

212212021210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381595 (or 3381592 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212212021210011 its reverse (110012120212212), we get a palindrome (322224141422223).

The spelling of 212212021210011 in words is "two hundred twelve trillion, two hundred twelve billion, twenty-one million, two hundred ten thousand, eleven".