122303303621 has 4 divisors (see below), whose sum is σ = 122696562144. Its totient is φ = 121910045100.

The previous prime is 122303303593. The next prime is 122303303623. The reversal of 122303303621 is 126303303221.

It is a happy number.

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: 126303303221 = 107 ⋅1180404703.

It is a cyclic number.

It is not a de Polignac number, because 122303303621 - 2¹⁴ = 122303287237 is a prime.

It is a super-2 number, since 2×122303303621² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122303303623) 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, 196628795 + ... + 196629416.

It is an arithmetic number, because the mean of its divisors is an integer number (30674140536).

Almost surely, 2^122303303621 is an apocalyptic number.

It is an amenable number.

122303303621 is a deficient number, since it is larger than the sum of its proper divisors (393258523).

122303303621 is an equidigital number, since it uses as much as digits as its factorization.

122303303621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393258522.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 122303303621 its reverse (126303303221), we get a palindrome (248606606842).

The spelling of 122303303621 in words is "one hundred twenty-two billion, three hundred three million, three hundred three thousand, six hundred twenty-one".