120212002121 has 2 divisors, whose sum is σ = 120212002122. Its totient is φ = 120212002120.

The previous prime is 120212002109. The next prime is 120212002171. The reversal of 120212002121 is 121200212021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61424665600 + 58787336521 = 247840^2 + 242461^2 .

It is a cyclic number.

It is not a de Polignac number, because 120212002121 - 2²² = 120207807817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120212002096 and 120212002105.

It is not a weakly prime, because it can be changed into another prime (120212002171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106001060 + 60106001061.

It is an arithmetic number, because the mean of its divisors is an integer number (60106001061).

Almost surely, 2^120212002121 is an apocalyptic number.

It is an amenable number.

120212002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212002121 is an equidigital number, since it uses as much as digits as its factorization.

120212002121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120212002121 its reverse (121200212021), we get a palindrome (241412214142).

The spelling of 120212002121 in words is "one hundred twenty billion, two hundred twelve million, two thousand, one hundred twenty-one".