121021101222239 has 2 divisors, whose sum is σ = 121021101222240. Its totient is φ = 121021101222238.

The previous prime is 121021101222173. The next prime is 121021101222251. The reversal of 121021101222239 is 932222101120121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121021101222239 - 2³² = 121016806254943 is a prime.

It is a super-2 number, since 2×121021101222239² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121021101222269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510550611119 + 60510550611120.

It is an arithmetic number, because the mean of its divisors is an integer number (60510550611120).

Almost surely, 2^{121021101222239} is an apocalyptic number.

121021101222239 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021101222239 is an equidigital number, since it uses as much as digits as its factorization.

121021101222239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 121021101222239 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred one million, two hundred twenty-two thousand, two hundred thirty-nine".