212021212020011 has 4 divisors (see below), whose sum is σ = 212091627570024. Its totient is φ = 211950796470000.

The previous prime is 212021212019987. The next prime is 212021212020017. The reversal of 212021212020011 is 110020212120212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212021212020011 - 2⁴² = 207623165508907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021212020017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35207770490 + ... + 35207776511.

It is an arithmetic number, because the mean of its divisors is an integer number (53022906892506).

Almost surely, 2^{212021212020011} is an apocalyptic number.

212021212020011 is a deficient number, since it is larger than the sum of its proper divisors (70415550013).

212021212020011 is an equidigital number, since it uses as much as digits as its factorization.

212021212020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70415550012.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212021212020011 its reverse (110020212120212), we get a palindrome (322041424140223).

The spelling of 212021212020011 in words is "two hundred twelve trillion, twenty-one billion, two hundred twelve million, twenty thousand, eleven".