122044421 has 4 divisors (see below), whose sum is σ = 122821932. Its totient is φ = 121266912.

The previous prime is 122044409. The next prime is 122044423. The reversal of 122044421 is 124440221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31528225 + 90516196 = 5615^2 + 9514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122044421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122044393 and 122044402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122044423) 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, 388520 + ... + 388833.

It is an arithmetic number, because the mean of its divisors is an integer number (30705483).

Almost surely, 2^122044421 is an apocalyptic number.

It is an amenable number.

122044421 is a deficient number, since it is larger than the sum of its proper divisors (777511).

122044421 is an equidigital number, since it uses as much as digits as its factorization.

122044421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777510.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 122044421 is about 11047.3716783677. The cubic root of 122044421 is about 496.0277540943.

Adding to 122044421 its reverse (124440221), we get a palindrome (246484642).

The spelling of 122044421 in words is "one hundred twenty-two million, forty-four thousand, four hundred twenty-one".