121414021 has 2 divisors, whose sum is σ = 121414022. Its totient is φ = 121414020.

The previous prime is 121414003. The next prime is 121414037. The reversal of 121414021 is 120414121.

It is a happy number.

It is an a-pointer prime, because the next prime (121414037) can be obtained adding 121414021 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65836996 + 55577025 = 8114^2 + 7455^2 .

It is a cyclic number.

It is not a de Polignac number, because 121414021 - 2⁷ = 121413893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121413986 and 121414004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121414001) 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, 60707010 + 60707011.

It is an arithmetic number, because the mean of its divisors is an integer number (60707011).

Almost surely, 2^121414021 is an apocalyptic number.

It is an amenable number.

121414021 is a deficient number, since it is larger than the sum of its proper divisors (1).

121414021 is an equidigital number, since it uses as much as digits as its factorization.

121414021 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 121414021 is about 11018.8030656692. The cubic root of 121414021 is about 495.1722299699.

Adding to 121414021 its reverse (120414121), we get a palindrome (241828142).

The spelling of 121414021 in words is "one hundred twenty-one million, four hundred fourteen thousand, twenty-one".