120121229 has 2 divisors, whose sum is σ = 120121230. Its totient is φ = 120121228.

The previous prime is 120121207. The next prime is 120121241. The reversal of 120121229 is 922121021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71149225 + 48972004 = 8435^2 + 6998^2 .

It is a cyclic number.

It is not a de Polignac number, because 120121229 - 2¹⁶ = 120055693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120121229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120121829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060614 + 60060615.

It is an arithmetic number, because the mean of its divisors is an integer number (60060615).

Almost surely, 2^120121229 is an apocalyptic number.

It is an amenable number.

120121229 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121229 is an equidigital number, since it uses as much as digits as its factorization.

120121229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 120121229 is about 10959.9830748044. The cubic root of 120121229 is about 493.4084569775.

The spelling of 120121229 in words is "one hundred twenty million, one hundred twenty-one thousand, two hundred twenty-nine".