212102100020111 has 8 divisors (see below), whose sum is σ = 252941634806784. Its totient is φ = 173897373929400.

The previous prime is 212102100020099. The next prime is 212102100020119. The reversal of 212102100020111 is 111020001201212.

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 212102100020111 - 2¹⁴ = 212102100003727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102100020119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658702173815 + ... + 658702174136.

It is an arithmetic number, because the mean of its divisors is an integer number (31617704350848).

Almost surely, 2^{212102100020111} is an apocalyptic number.

212102100020111 is a deficient number, since it is larger than the sum of its proper divisors (40839534786673).

212102100020111 is a wasteful number, since it uses less digits than its factorization.

212102100020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317404347981.

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

Adding to 212102100020111 its reverse (111020001201212), we get a palindrome (323122101221323).

The spelling of 212102100020111 in words is "two hundred twelve trillion, one hundred two billion, one hundred million, twenty thousand, one hundred eleven".