122424203112121 has 4 divisors (see below), whose sum is σ = 124734093736932. Its totient is φ = 120114312487312.

The previous prime is 122424203112091. The next prime is 122424203112139. The reversal of 122424203112121 is 121211302424221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107828785156096 + 14595417956025 = 10384064^2 + 3820395^2 .

It is a cyclic number.

It is not a de Polignac number, because 122424203112121 - 2⁷ = 122424203111993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122424203112121.

It is not an unprimeable number, because it can be changed into a prime (122424203119121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154945312326 + ... + 1154945312431.

It is an arithmetic number, because the mean of its divisors is an integer number (31183523434233).

Almost surely, 2^{122424203112121} is an apocalyptic number.

It is an amenable number.

122424203112121 is a deficient number, since it is larger than the sum of its proper divisors (2309890624811).

122424203112121 is an equidigital number, since it uses as much as digits as its factorization.

122424203112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309890624810.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 122424203112121 its reverse (121211302424221), we get a palindrome (243635505536342).

The spelling of 122424203112121 in words is "one hundred twenty-two trillion, four hundred twenty-four billion, two hundred three million, one hundred twelve thousand, one hundred twenty-one".