20012303221 has 8 divisors (see below), whose sum is σ = 20263186944. Its totient is φ = 19761652320.

The previous prime is 20012303111. The next prime is 20012303249. The reversal of 20012303221 is 12230321002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20012303221 - 2¹³ = 20012295029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012303195 and 20012303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012303821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118105 + ... + 232321.

It is an arithmetic number, because the mean of its divisors is an integer number (2532898368).

Almost surely, 2^20012303221 is an apocalyptic number.

It is an amenable number.

20012303221 is a deficient number, since it is larger than the sum of its proper divisors (250883723).

20012303221 is a wasteful number, since it uses less digits than its factorization.

20012303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116411.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20012303221 its reverse (12230321002), we get a palindrome (32242624223).

The spelling of 20012303221 in words is "twenty billion, twelve million, three hundred three thousand, two hundred twenty-one".