212111003101 has 2 divisors, whose sum is σ = 212111003102. Its totient is φ = 212111003100.

The previous prime is 212111003087. The next prime is 212111003119. The reversal of 212111003101 is 101300111212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186213825625 + 25897177476 = 431525^2 + 160926^2 .

It is a cyclic number.

It is not a de Polignac number, because 212111003101 - 2⁹ = 212111002589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212111003131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055501550 + 106055501551.

It is an arithmetic number, because the mean of its divisors is an integer number (106055501551).

Almost surely, 2^212111003101 is an apocalyptic number.

It is an amenable number.

212111003101 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111003101 is an equidigital number, since it uses as much as digits as its factorization.

212111003101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 212111003101 its reverse (101300111212), we get a palindrome (313411114313).

The spelling of 212111003101 in words is "two hundred twelve billion, one hundred eleven million, three thousand, one hundred one".