20212102210 has 8 divisors (see below), whose sum is σ = 36381783996. Its totient is φ = 8084840880.

The previous prime is 20212102199. The next prime is 20212102231. The reversal of 20212102210 is 1220121202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20207475409 + 4626801 = 142153^2 + 2151^2 .

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, 1010605101 + ... + 1010605120.

Almost surely, 2^20212102210 is an apocalyptic number.

20212102210 is a deficient number, since it is larger than the sum of its proper divisors (16169681786).

20212102210 is a wasteful number, since it uses less digits than its factorization.

20212102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021210228.

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

Adding to 20212102210 its reverse (1220121202), we get a palindrome (21432223412).

The spelling of 20212102210 in words is "twenty billion, two hundred twelve million, one hundred two thousand, two hundred ten".