121021201207 has 2 divisors, whose sum is σ = 121021201208. Its totient is φ = 121021201206.

The previous prime is 121021201183. The next prime is 121021201229. The reversal of 121021201207 is 702102120121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121021201207 - 2⁷ = 121021201079 is a prime.

It is a super-2 number, since 2×121021201207² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121021201277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510600603 + 60510600604.

It is an arithmetic number, because the mean of its divisors is an integer number (60510600604).

Almost surely, 2^121021201207 is an apocalyptic number.

121021201207 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021201207 is an equidigital number, since it uses as much as digits as its factorization.

121021201207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 121021201207 its reverse (702102120121), we get a palindrome (823123321328).

The spelling of 121021201207 in words is "one hundred twenty-one billion, twenty-one million, two hundred one thousand, two hundred seven".