212020020002101 has 2 divisors, whose sum is σ = 212020020002102. Its totient is φ = 212020020002100.

The previous prime is 212020020002099. The next prime is 212020020002201. The reversal of 212020020002101 is 101200020020212.

It is a happy number.

212020020002101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184013972780625 + 28006047221476 = 13565175^2 + 5292074^2 .

It is a cyclic number.

It is not a de Polignac number, because 212020020002101 - 2¹ = 212020020002099 is a prime.

Together with 212020020002099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212020020002201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010010001050 + 106010010001051.

It is an arithmetic number, because the mean of its divisors is an integer number (106010010001051).

Almost surely, 2^{212020020002101} is an apocalyptic number.

It is an amenable number.

212020020002101 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020020002101 is an equidigital number, since it uses as much as digits as its factorization.

212020020002101 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 13.

Adding to 212020020002101 its reverse (101200020020212), we get a palindrome (313220040022313).

The spelling of 212020020002101 in words is "two hundred twelve trillion, twenty billion, twenty million, two thousand, one hundred one".