303122220000020 has 24 divisors (see below), whose sum is σ = 638380606605000. Its totient is φ = 120901469980032.

The previous prime is 303122219999999. The next prime is 303122220000049. The reversal of 303122220000020 is 20000022221303.

It can be written as a sum of positive squares in 4 ways, for example, as 9933515455504 + 293188704544516 = 3151748^2 + 17122754^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21713619095 + ... + 21713633054.

It is an arithmetic number, because the mean of its divisors is an integer number (26599191941875).

Almost surely, 2^{303122220000020} is an apocalyptic number.

It is an amenable number.

303122220000020 is an abundant number, since it is smaller than the sum of its proper divisors (335258386604980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

303122220000020 is a wasteful number, since it uses less digits than its factorization.

303122220000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43427252507 (or 43427252505 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 303122220000020 its reverse (20000022221303), we get a palindrome (323122242221323).

The spelling of 303122220000020 in words is "three hundred three trillion, one hundred twenty-two billion, two hundred twenty million, twenty", and thus it is an aban number.