10012120210121 has 2 divisors, whose sum is σ = 10012120210122. Its totient is φ = 10012120210120.

The previous prime is 10012120210109. The next prime is 10012120210283. The reversal of 10012120210121 is 12101202121001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9929992113721 + 82128096400 = 3151189^2 + 286580^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012120210121 - 2¹⁰ = 10012120209097 is a prime.

It is a super-2 number, since 2×10012120210121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10012120210096 and 10012120210105.

It is not a weakly prime, because it can be changed into another prime (10012120212121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006060105060 + 5006060105061.

It is an arithmetic number, because the mean of its divisors is an integer number (5006060105061).

Almost surely, 2^{10012120210121} is an apocalyptic number.

It is an amenable number.

10012120210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012120210121 is an equidigital number, since it uses as much as digits as its factorization.

10012120210121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10012120210121 its reverse (12101202121001), we get a palindrome (22113322331122).

The spelling of 10012120210121 in words is "ten trillion, twelve billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-one".