122124421 has 4 divisors (see below), whose sum is σ = 122933344. Its totient is φ = 121315500.

The previous prime is 122124391. The next prime is 122124433. The reversal of 122124421 is 124421221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124421221 = 97 ⋅1282693.

It is a cyclic number.

It is not a de Polignac number, because 122124421 - 2⁹ = 122123909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122124461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404235 + ... + 404536.

It is an arithmetic number, because the mean of its divisors is an integer number (30733336).

Almost surely, 2^122124421 is an apocalyptic number.

It is an amenable number.

122124421 is a deficient number, since it is larger than the sum of its proper divisors (808923).

122124421 is an equidigital number, since it uses as much as digits as its factorization.

122124421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808922.

The product of its digits is 256, while the sum is 19.

The square root of 122124421 is about 11050.9918559376. The cubic root of 122124421 is about 496.1361123260.

Adding to 122124421 its reverse (124421221), we get a palindrome (246545642).

The spelling of 122124421 in words is "one hundred twenty-two million, one hundred twenty-four thousand, four hundred twenty-one".