212102020102011 has 64 divisors (see below), whose sum is σ = 320735085834240. Its totient is φ = 123695781073920.

The previous prime is 212102020102009. The next prime is 212102020102019. The reversal of 212102020102011 is 110201020201212.

It is not a de Polignac number, because 212102020102011 - 2¹ = 212102020102009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212102020102019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1684663615 + ... + 1684789511.

It is an arithmetic number, because the mean of its divisors is an integer number (5011485716160).

Almost surely, 2^{212102020102011} is an apocalyptic number.

212102020102011 is a deficient number, since it is larger than the sum of its proper divisors (108633065732229).

212102020102011 is a wasteful number, since it uses less digits than its factorization.

212102020102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143276.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212102020102011 its reverse (110201020201212), we get a palindrome (322303040303223).

The spelling of 212102020102011 in words is "two hundred twelve trillion, one hundred two billion, twenty million, one hundred two thousand, eleven".