212212001012101 has 4 divisors (see below), whose sum is σ = 212292967058604. Its totient is φ = 212131034965600.

The previous prime is 212212001012057. The next prime is 212212001012113. The reversal of 212212001012101 is 101210100212212.

212212001012101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147060854728225 + 65151146283876 = 12126865^2 + 8071626^2 .

It is a cyclic number.

It is not a de Polignac number, because 212212001012101 - 2¹⁹ = 212212000487813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212008012101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40483019320 + ... + 40483024561.

It is an arithmetic number, because the mean of its divisors is an integer number (53073241764651).

Almost surely, 2^{212212001012101} is an apocalyptic number.

It is an amenable number.

212212001012101 is a deficient number, since it is larger than the sum of its proper divisors (80966046503).

212212001012101 is an equidigital number, since it uses as much as digits as its factorization.

212212001012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80966046502.

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

Adding to 212212001012101 its reverse (101210100212212), we get a palindrome (313422101224313).

The spelling of 212212001012101 in words is "two hundred twelve trillion, two hundred twelve billion, one million, twelve thousand, one hundred one".