201020020122101 has 2 divisors, whose sum is σ = 201020020122102. Its totient is φ = 201020020122100.

The previous prime is 201020020122041. The next prime is 201020020122143. The reversal of 201020020122101 is 101221020020102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200839178307076 + 180841815025 = 14171774^2 + 425255^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020020122101 - 2¹⁸ = 201020019859957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201020020122191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510010061050 + 100510010061051.

It is an arithmetic number, because the mean of its divisors is an integer number (100510010061051).

Almost surely, 2^{201020020122101} is an apocalyptic number.

It is an amenable number.

201020020122101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020020122101 is an equidigital number, since it uses as much as digits as its factorization.

201020020122101 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 14.

Adding to 201020020122101 its reverse (101221020020102), we get a palindrome (302241040142203).

The spelling of 201020020122101 in words is "two hundred one trillion, twenty billion, twenty million, one hundred twenty-two thousand, one hundred one".