121422601 has 2 divisors, whose sum is σ = 121422602. Its totient is φ = 121422600.

The previous prime is 121422599. The next prime is 121422617. The reversal of 121422601 is 106224121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106399225 + 15023376 = 10315^2 + 3876^2 .

It is a cyclic number.

It is not a de Polignac number, because 121422601 - 2¹ = 121422599 is a prime.

Together with 121422599, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121422671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60711300 + 60711301.

It is an arithmetic number, because the mean of its divisors is an integer number (60711301).

Almost surely, 2^121422601 is an apocalyptic number.

It is an amenable number.

121422601 is a deficient number, since it is larger than the sum of its proper divisors (1).

121422601 is an equidigital number, since it uses as much as digits as its factorization.

121422601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 121422601 is about 11019.1923932746. The cubic root of 121422601 is about 495.1838938552.

Adding to 121422601 its reverse (106224121), we get a palindrome (227646722).

The spelling of 121422601 in words is "one hundred twenty-one million, four hundred twenty-two thousand, six hundred one".