20021033331332 has 24 divisors (see below), whose sum is σ = 38222405719680. Its totient is φ = 9100366601760.

The previous prime is 20021033331319. The next prime is 20021033331347. The reversal of 20021033331332 is 23313333012002.

It is a happy number.

It is an unprimeable number.

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, 1420478 + ... + 6485354.

It is an arithmetic number, because the mean of its divisors is an integer number (1592600238320).

Almost surely, 2^{20021033331332} is an apocalyptic number.

20021033331332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20021033331332 is a deficient number, since it is larger than the sum of its proper divisors (18201372388348).

20021033331332 is a wasteful number, since it uses less digits than its factorization.

20021033331332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154731 (or 5154729 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 20021033331332 its reverse (23313333012002), we get a palindrome (43334366343334).

The spelling of 20021033331332 in words is "twenty trillion, twenty-one billion, thirty-three million, three hundred thirty-one thousand, three hundred thirty-two".