201120210101 has 2 divisors, whose sum is σ = 201120210102. Its totient is φ = 201120210100.

The previous prime is 201120210079. The next prime is 201120210113. The reversal of 201120210101 is 101012021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154096287601 + 47023922500 = 392551^2 + 216850^2 .

It is a cyclic number.

It is not a de Polignac number, because 201120210101 - 2¹⁴ = 201120193717 is a prime.

It is a super-2 number, since 2×201120210101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201120210301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560105050 + 100560105051.

It is an arithmetic number, because the mean of its divisors is an integer number (100560105051).

Almost surely, 2^201120210101 is an apocalyptic number.

It is an amenable number.

201120210101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201120210101 is an equidigital number, since it uses as much as digits as its factorization.

201120210101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201120210101 its reverse (101012021102), we get a palindrome (302132231203).

The spelling of 201120210101 in words is "two hundred one billion, one hundred twenty million, two hundred ten thousand, one hundred one".