20021133005 has 8 divisors (see below), whose sum is σ = 24026875872. Its totient is φ = 16015895568.

The previous prime is 20021132993. The next prime is 20021133007. The reversal of 20021133005 is 50033112002.

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 20021133005 - 2⁸ = 20021132749 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 (20021133007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32927 + ... + 202796.

It is an arithmetic number, because the mean of its divisors is an integer number (3003359484).

Almost surely, 2^20021133005 is an apocalyptic number.

It is an amenable number.

20021133005 is a deficient number, since it is larger than the sum of its proper divisors (4005742867).

20021133005 is a wasteful number, since it uses less digits than its factorization.

20021133005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252715.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 20021133005 its reverse (50033112002), we get a palindrome (70054245007).

The spelling of 20021133005 in words is "twenty billion, twenty-one million, one hundred thirty-three thousand, five".