212201020001111 has 4 divisors (see below), whose sum is σ = 212205396140424. Its totient is φ = 212196643861800.

The previous prime is 212201020001107. The next prime is 212201020001147. The reversal of 212201020001111 is 111100020102212.

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 212201020001111 - 2² = 212201020001107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201020301111) 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, 2187996920 + ... + 2188093901.

It is an arithmetic number, because the mean of its divisors is an integer number (53051349035106).

Almost surely, 2^{212201020001111} is an apocalyptic number.

212201020001111 is a deficient number, since it is larger than the sum of its proper divisors (4376139313).

212201020001111 is an equidigital number, since it uses as much as digits as its factorization.

212201020001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376139312.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212201020001111 its reverse (111100020102212), we get a palindrome (323301040103323).

The spelling of 212201020001111 in words is "two hundred twelve trillion, two hundred one billion, twenty million, one thousand, one hundred eleven".