122134421 has 2 divisors, whose sum is σ = 122134422. Its totient is φ = 122134420.

The previous prime is 122134403. The next prime is 122134427. The reversal of 122134421 is 124431221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101103025 + 21031396 = 10055^2 + 4586^2 .

It is a cyclic number.

It is not a de Polignac number, because 122134421 - 2⁶ = 122134357 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122134393 and 122134402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122134427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61067210 + 61067211.

It is an arithmetic number, because the mean of its divisors is an integer number (61067211).

Almost surely, 2^122134421 is an apocalyptic number.

It is an amenable number.

122134421 is a deficient number, since it is larger than the sum of its proper divisors (1).

122134421 is an equidigital number, since it uses as much as digits as its factorization.

122134421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 122134421 is about 11051.4442947517. Note that the first 3 decimals coincide. The cubic root of 122134421 is about 496.1496537773.

Adding to 122134421 its reverse (124431221), we get a palindrome (246565642).

The spelling of 122134421 in words is "one hundred twenty-two million, one hundred thirty-four thousand, four hundred twenty-one".