121424101 has 2 divisors, whose sum is σ = 121424102. Its totient is φ = 121424100.

The previous prime is 121424087. The next prime is 121424137. The reversal of 121424101 is 101424121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85544001 + 35880100 = 9249^2 + 5990^2 .

It is a cyclic number.

It is not a de Polignac number, because 121424101 - 2²⁵ = 87869669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121424141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60712050 + 60712051.

It is an arithmetic number, because the mean of its divisors is an integer number (60712051).

Almost surely, 2^121424101 is an apocalyptic number.

It is an amenable number.

121424101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121424101 is an equidigital number, since it uses as much as digits as its factorization.

121424101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 121424101 is about 11019.2604561286. The cubic root of 121424101 is about 495.1859329396.

Adding to 121424101 its reverse (101424121), we get a palindrome (222848222).

The spelling of 121424101 in words is "one hundred twenty-one million, four hundred twenty-four thousand, one hundred one".