2010210121 has 2 divisors, whose sum is σ = 2010210122. Its totient is φ = 2010210120.

The previous prime is 2010210113. The next prime is 2010210131. The reversal of 2010210121 is 1210120102.

It is an a-pointer prime, because the next prime (2010210131) can be obtained adding 2010210121 to its sum of digits (10).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1167178896 + 843031225 = 34164^2 + 29035^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010210121 - 2³ = 2010210113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2010210098 and 2010210107.

It is not a weakly prime, because it can be changed into another prime (2010210131) 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, 1005105060 + 1005105061.

It is an arithmetic number, because the mean of its divisors is an integer number (1005105061).

Almost surely, 2^2010210121 is an apocalyptic number.

It is an amenable number.

2010210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010210121 is an equidigital number, since it uses as much as digits as its factorization.

2010210121 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 10.

The square root of 2010210121 is about 44835.3668547498. The cubic root of 2010210121 is about 1262.0614028675.

Adding to 2010210121 its reverse (1210120102), we get a palindrome (3220330223).

The spelling of 2010210121 in words is "two billion, ten million, two hundred ten thousand, one hundred twenty-one".