121223311201 has 2 divisors, whose sum is σ = 121223311202. Its totient is φ = 121223311200.

The previous prime is 121223311193. The next prime is 121223311219. The reversal of 121223311201 is 102113322121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117882355600 + 3340955601 = 343340^2 + 57801^2 .

It is a cyclic number.

It is not a de Polignac number, because 121223311201 - 2³ = 121223311193 is a prime.

It is not a weakly prime, because it can be changed into another prime (121223311501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611655600 + 60611655601.

It is an arithmetic number, because the mean of its divisors is an integer number (60611655601).

Almost surely, 2^121223311201 is an apocalyptic number.

It is an amenable number.

121223311201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121223311201 is an equidigital number, since it uses as much as digits as its factorization.

121223311201 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 19.

Adding to 121223311201 its reverse (102113322121), we get a palindrome (223336633322).

The spelling of 121223311201 in words is "one hundred twenty-one billion, two hundred twenty-three million, three hundred eleven thousand, two hundred one".