122131335401 has 4 divisors (see below), whose sum is σ = 122132643204. Its totient is φ = 122130027600.

The previous prime is 122131335367. The next prime is 122131335413. The reversal of 122131335401 is 104533131221.

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 39650367376 + 82480968025 = 199124^2 + 287195^2 .

It is a cyclic number.

It is not a de Polignac number, because 122131335401 - 2³⁰ = 121057593577 is a prime.

It is a super-5 number, since 5×122131335401⁵ (a number of 57 digits) contains 55555 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122131334401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502070 + ... + 704511.

It is an arithmetic number, because the mean of its divisors is an integer number (30533160801).

Almost surely, 2^122131335401 is an apocalyptic number.

It is an amenable number.

122131335401 is a deficient number, since it is larger than the sum of its proper divisors (1307803).

122131335401 is a wasteful number, since it uses less digits than its factorization.

122131335401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307802.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 122131335401 its reverse (104533131221), we get a palindrome (226664466622).

The spelling of 122131335401 in words is "one hundred twenty-two billion, one hundred thirty-one million, three hundred thirty-five thousand, four hundred one".