121202221229 has 2 divisors, whose sum is σ = 121202221230. Its totient is φ = 121202221228.

The previous prime is 121202221213. The next prime is 121202221237. The reversal of 121202221229 is 922122202121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65906698729 + 55295522500 = 256723^2 + 235150^2 .

It is an emirp because it is prime and its reverse (922122202121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121202221229 - 2⁴ = 121202221213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121202221198 and 121202221207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121202229229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601110614 + 60601110615.

It is an arithmetic number, because the mean of its divisors is an integer number (60601110615).

Almost surely, 2^121202221229 is an apocalyptic number.

It is an amenable number.

121202221229 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202221229 is an equidigital number, since it uses as much as digits as its factorization.

121202221229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 121202221229 in words is "one hundred twenty-one billion, two hundred two million, two hundred twenty-one thousand, two hundred twenty-nine".