121200233224253 has 2 divisors, whose sum is σ = 121200233224254. Its totient is φ = 121200233224252.

The previous prime is 121200233224249. The next prime is 121200233224261. The reversal of 121200233224253 is 352422332002121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83493485925529 + 37706747298724 = 9137477^2 + 6140582^2 .

It is a cyclic number.

It is not a de Polignac number, because 121200233224253 - 2² = 121200233224249 is a prime.

It is a super-2 number, since 2×121200233224253² (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 (121200233227253) 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, 60600116612126 + 60600116612127.

It is an arithmetic number, because the mean of its divisors is an integer number (60600116612127).

Almost surely, 2^{121200233224253} is an apocalyptic number.

It is an amenable number.

121200233224253 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200233224253 is an equidigital number, since it uses as much as digits as its factorization.

121200233224253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 121200233224253 its reverse (352422332002121), we get a palindrome (473622565226374).

The spelling of 121200233224253 in words is "one hundred twenty-one trillion, two hundred billion, two hundred thirty-three million, two hundred twenty-four thousand, two hundred fifty-three".