122442401 has 4 divisors (see below), whose sum is σ = 123654804. Its totient is φ = 121230000.

The previous prime is 122442391. The next prime is 122442443. The reversal of 122442401 is 104244221.

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 121000000 + 1442401 = 11000^2 + 1201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122442401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122442451) 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, 606050 + ... + 606251.

It is an arithmetic number, because the mean of its divisors is an integer number (30913701).

Almost surely, 2^122442401 is an apocalyptic number.

It is an amenable number.

122442401 is a deficient number, since it is larger than the sum of its proper divisors (1212403).

122442401 is a wasteful number, since it uses less digits than its factorization.

122442401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212402.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 122442401 is about 11065.3694470632. The cubic root of 122442401 is about 496.5663419621.

Adding to 122442401 its reverse (104244221), we get a palindrome (226686622).

The spelling of 122442401 in words is "one hundred twenty-two million, four hundred forty-two thousand, four hundred one".