212021002220011 has 4 divisors (see below), whose sum is σ = 212021868249000. Its totient is φ = 212020136191024.

The previous prime is 212021002220009. The next prime is 212021002220033. The reversal of 212021002220011 is 110022200120212.

It is a happy number.

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 212021002220011 - 2¹ = 212021002220009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021002220611) 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, 432647161 + ... + 433136938.

It is an arithmetic number, because the mean of its divisors is an integer number (53005467062250).

Almost surely, 2^{212021002220011} is an apocalyptic number.

212021002220011 is a deficient number, since it is larger than the sum of its proper divisors (866028989).

212021002220011 is an equidigital number, since it uses as much as digits as its factorization.

212021002220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866028988.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212021002220011 its reverse (110022200120212), we get a palindrome (322043202340223).

The spelling of 212021002220011 in words is "two hundred twelve trillion, twenty-one billion, two million, two hundred twenty thousand, eleven".