20211202210 has 8 divisors (see below), whose sum is σ = 36380163996. Its totient is φ = 8084480880.

The previous prime is 20211202189. The next prime is 20211202241. The reversal of 20211202210 is 1220211202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19701210321 + 509991889 = 140361^2 + 22583^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 1010560101 + ... + 1010560120.

Almost surely, 2^20211202210 is an apocalyptic number.

20211202210 is a deficient number, since it is larger than the sum of its proper divisors (16168961786).

20211202210 is a wasteful number, since it uses less digits than its factorization.

20211202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021120228.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20211202210 its reverse (1220211202), we get a palindrome (21431413412).

The spelling of 20211202210 in words is "twenty billion, two hundred eleven million, two hundred two thousand, two hundred ten".