212201022012011 has 4 divisors (see below), whose sum is σ = 215797649503800. Its totient is φ = 208604394520224.

The previous prime is 212201022011999. The next prime is 212201022012059. The reversal of 212201022012011 is 110210220102212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212201022012011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212201022014011) 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, 1798313745806 + ... + 1798313745923.

It is an arithmetic number, because the mean of its divisors is an integer number (53949412375950).

Almost surely, 2^{212201022012011} is an apocalyptic number.

212201022012011 is a deficient number, since it is larger than the sum of its proper divisors (3596627491789).

212201022012011 is an equidigital number, since it uses as much as digits as its factorization.

212201022012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596627491788.

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

Adding to 212201022012011 its reverse (110210220102212), we get a palindrome (322411242114223).

The spelling of 212201022012011 in words is "two hundred twelve trillion, two hundred one billion, twenty-two million, twelve thousand, eleven".