10212012010121 has 2 divisors, whose sum is σ = 10212012010122. Its totient is φ = 10212012010120.

The previous prime is 10212012010073. The next prime is 10212012010159. The reversal of 10212012010121 is 12101021021201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9643888022521 + 568123987600 = 3105461^2 + 753740^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212012010121 - 2¹⁴ = 10212011993737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212012010096 and 10212012010105.

It is not a weakly prime, because it can be changed into another prime (10212012010171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106006005060 + 5106006005061.

It is an arithmetic number, because the mean of its divisors is an integer number (5106006005061).

Almost surely, 2^{10212012010121} is an apocalyptic number.

It is an amenable number.

10212012010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212012010121 is an equidigital number, since it uses as much as digits as its factorization.

10212012010121 is an evil number, because the sum of its binary digits is even.

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

Adding to 10212012010121 its reverse (12101021021201), we get a palindrome (22313033031322).

The spelling of 10212012010121 in words is "ten trillion, two hundred twelve billion, twelve million, ten thousand, one hundred twenty-one".