122434021 has 2 divisors, whose sum is σ = 122434022. Its totient is φ = 122434020.

The previous prime is 122433979. The next prime is 122434049. The reversal of 122434021 is 120434221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74200996 + 48233025 = 8614^2 + 6945^2 .

It is a cyclic number.

It is not a de Polignac number, because 122434021 - 2¹³ = 122425829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122434021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122434061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61217010 + 61217011.

It is an arithmetic number, because the mean of its divisors is an integer number (61217011).

Almost surely, 2^122434021 is an apocalyptic number.

It is an amenable number.

122434021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122434021 is an equidigital number, since it uses as much as digits as its factorization.

122434021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 122434021 is about 11064.9907817404. The cubic root of 122434021 is about 496.5550133133. Note that the first 3 decimals are identical.

Adding to 122434021 its reverse (120434221), we get a palindrome (242868242).

It can be divided in two parts, 1224 and 34021, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 122434021 in words is "one hundred twenty-two million, four hundred thirty-four thousand, twenty-one".