121422029 has 2 divisors, whose sum is σ = 121422030. Its totient is φ = 121422028.

The previous prime is 121422019. The next prime is 121422031. The reversal of 121422029 is 920224121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81036004 + 40386025 = 9002^2 + 6355^2 .

It is a cyclic number.

It is not a de Polignac number, because 121422029 - 2⁴ = 121422013 is a prime.

Together with 121422031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121421995 and 121422013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121422019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60711014 + 60711015.

It is an arithmetic number, because the mean of its divisors is an integer number (60711015).

Almost surely, 2^121422029 is an apocalyptic number.

It is an amenable number.

121422029 is a deficient number, since it is larger than the sum of its proper divisors (1).

121422029 is an equidigital number, since it uses as much as digits as its factorization.

121422029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 121422029 is about 11019.1664385288. The cubic root of 121422029 is about 495.1831162799.

The spelling of 121422029 in words is "one hundred twenty-one million, four hundred twenty-two thousand, twenty-nine".