212100202211101 has 2 divisors, whose sum is σ = 212100202211102. Its totient is φ = 212100202211100.

The previous prime is 212100202211021. The next prime is 212100202211111. The reversal of 212100202211101 is 101112202001212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130538965383225 + 81561236827876 = 11425365^2 + 9031126^2 .

It is a cyclic number.

It is not a de Polignac number, because 212100202211101 - 2⁷ = 212100202210973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212100202211111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050101105550 + 106050101105551.

It is an arithmetic number, because the mean of its divisors is an integer number (106050101105551).

Almost surely, 2^{212100202211101} is an apocalyptic number.

It is an amenable number.

212100202211101 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100202211101 is an equidigital number, since it uses as much as digits as its factorization.

212100202211101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212100202211101 its reverse (101112202001212), we get a palindrome (313212404212313).

The spelling of 212100202211101 in words is "two hundred twelve trillion, one hundred billion, two hundred two million, two hundred eleven thousand, one hundred one".