20001332210 has 8 divisors (see below), whose sum is σ = 36002397996. Its totient is φ = 8000532880.

The previous prime is 20001332209. The next prime is 20001332237. The reversal of 20001332210 is 1223310002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16597426561 + 3403905649 = 128831^2 + 58343^2 .

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

It is a Curzon number.

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, 1000066601 + ... + 1000066620.

Almost surely, 2^20001332210 is an apocalyptic number.

20001332210 is a deficient number, since it is larger than the sum of its proper divisors (16001065786).

20001332210 is a wasteful number, since it uses less digits than its factorization.

20001332210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000133228.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20001332210 its reverse (1223310002), we get a palindrome (21224642212).

The spelling of 20001332210 in words is "twenty billion, one million, three hundred thirty-two thousand, two hundred ten".