120002212222121 has 2 divisors, whose sum is σ = 120002212222122. Its totient is φ = 120002212222120.

The previous prime is 120002212222063. The next prime is 120002212222157. The reversal of 120002212222121 is 121222212200021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98144904189721 + 21857308032400 = 9906811^2 + 4675180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120002212222121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120002212222093 and 120002212222102.

It is not a weakly prime, because it can be changed into another prime (120002212222021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60001106111060 + 60001106111061.

It is an arithmetic number, because the mean of its divisors is an integer number (60001106111061).

Almost surely, 2^{120002212222121} is an apocalyptic number.

It is an amenable number.

120002212222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120002212222121 is an equidigital number, since it uses as much as digits as its factorization.

120002212222121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 120002212222121 its reverse (121222212200021), we get a palindrome (241224424422142).

The spelling of 120002212222121 in words is "one hundred twenty trillion, two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twenty-one".