212021201201111 has 8 divisors (see below), whose sum is σ = 213326595539904. Its totient is φ = 210716724543840.

The previous prime is 212021201201101. The next prime is 212021201201137. The reversal of 212021201201111 is 111102102120212.

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 212021201201111 - 2³⁸ = 211746323294167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212021201201111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021201201101) 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, 228956876 + ... + 229881041.

It is an arithmetic number, because the mean of its divisors is an integer number (26665824442488).

Almost surely, 2^{212021201201111} is an apocalyptic number.

212021201201111 is a deficient number, since it is larger than the sum of its proper divisors (1305394338793).

212021201201111 is a wasteful number, since it uses less digits than its factorization.

212021201201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458840761.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212021201201111 its reverse (111102102120212), we get a palindrome (323123303321323).

The spelling of 212021201201111 in words is "two hundred twelve trillion, twenty-one billion, two hundred one million, two hundred one thousand, one hundred eleven".