121225343101 has 2 divisors, whose sum is σ = 121225343102. Its totient is φ = 121225343100.

The previous prime is 121225343089. The next prime is 121225343177. The reversal of 121225343101 is 101343522121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70081972900 + 51143370201 = 264730^2 + 226149^2 .

It is a cyclic number.

It is not a de Polignac number, because 121225343101 - 2⁵ = 121225343069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121225343201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60612671550 + 60612671551.

It is an arithmetic number, because the mean of its divisors is an integer number (60612671551).

Almost surely, 2^121225343101 is an apocalyptic number.

It is an amenable number.

121225343101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121225343101 is an equidigital number, since it uses as much as digits as its factorization.

121225343101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 121225343101 its reverse (101343522121), we get a palindrome (222568865222).

The spelling of 121225343101 in words is "one hundred twenty-one billion, two hundred twenty-five million, three hundred forty-three thousand, one hundred one".