121021120229 has 2 divisors, whose sum is σ = 121021120230. Its totient is φ = 121021120228.

The previous prime is 121021120169. The next prime is 121021120243. The reversal of 121021120229 is 922021120121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118050652225 + 2970468004 = 343585^2 + 54502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121021120229 is a prime.

It is a super-2 number, since 2×121021120229² (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 (121021020229) 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, 60510560114 + 60510560115.

It is an arithmetic number, because the mean of its divisors is an integer number (60510560115).

Almost surely, 2^121021120229 is an apocalyptic number.

It is an amenable number.

121021120229 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021120229 is an equidigital number, since it uses as much as digits as its factorization.

121021120229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 121021120229 in words is "one hundred twenty-one billion, twenty-one million, one hundred twenty thousand, two hundred twenty-nine".