212021182011 has 8 divisors (see below), whose sum is σ = 283421633040. Its totient is φ = 140984092832.

The previous prime is 212021182007. The next prime is 212021182019. The reversal of 212021182011 is 110281120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212021182011 - 2² = 212021182007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212021182019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90839100 + ... + 90841433.

It is an arithmetic number, because the mean of its divisors is an integer number (35427704130).

Almost surely, 2^212021182011 is an apocalyptic number.

212021182011 is a deficient number, since it is larger than the sum of its proper divisors (71400451029).

212021182011 is a wasteful number, since it uses less digits than its factorization.

212021182011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181680925.

The product of its (nonzero) digits is 128, while the sum is 21.

The spelling of 212021182011 in words is "two hundred twelve billion, twenty-one million, one hundred eighty-two thousand, eleven".