212110102020111 has 16 divisors (see below), whose sum is σ = 290478115682304. Its totient is φ = 137574965178144.

The previous prime is 212110102020107. The next prime is 212110102020119. The reversal of 212110102020111 is 111020201011212.

It is a happy number.

It is not a de Polignac number, because 212110102020111 - 2² = 212110102020107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110102020119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67667895 + ... + 70733048.

It is an arithmetic number, because the mean of its divisors is an integer number (18154882230144).

Almost surely, 2^{212110102020111} is an apocalyptic number.

212110102020111 is a deficient number, since it is larger than the sum of its proper divisors (78368013662193).

212110102020111 is a wasteful number, since it uses less digits than its factorization.

212110102020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138414790.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212110102020111 its reverse (111020201011212), we get a palindrome (323130303031323).

The spelling of 212110102020111 in words is "two hundred twelve trillion, one hundred ten billion, one hundred two million, twenty thousand, one hundred eleven".