20021333210 has 8 divisors (see below), whose sum is σ = 36038399796. Its totient is φ = 8008533280.

The previous prime is 20021333207. The next prime is 20021333237. The reversal of 20021333210 is 1233312002.

It can be written as a sum of positive squares in 2 ways, for example, as 17020594369 + 3000738841 = 130463^2 + 54779^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001066651 + ... + 1001066670.

Almost surely, 2^20021333210 is an apocalyptic number.

20021333210 is a deficient number, since it is larger than the sum of its proper divisors (16017066586).

20021333210 is a wasteful number, since it uses less digits than its factorization.

20021333210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002133328.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20021333210 its reverse (1233312002), we get a palindrome (21254645212).

The spelling of 20021333210 in words is "twenty billion, twenty-one million, three hundred thirty-three thousand, two hundred ten".