1020210210101 has 2 divisors, whose sum is σ = 1020210210102. Its totient is φ = 1020210210100.

The previous prime is 1020210210073. The next prime is 1020210210133. The reversal of 1020210210101 is 1010120120201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556075947025 + 464134263076 = 745705^2 + 681274^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020210210101 - 2³⁰ = 1019136468277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020210218101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510105105050 + 510105105051.

It is an arithmetic number, because the mean of its divisors is an integer number (510105105051).

Almost surely, 2^{1020210210101} is an apocalyptic number.

It is an amenable number.

1020210210101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020210210101 is an equidigital number, since it uses as much as digits as its factorization.

1020210210101 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 1020210210101 its reverse (1010120120201), we get a palindrome (2030330330302).

The spelling of 1020210210101 in words is "one trillion, twenty billion, two hundred ten million, two hundred ten thousand, one hundred one".