20212120110202 has 8 divisors (see below), whose sum is σ = 30733497702036. Its totient is φ = 9967620876192.

The previous prime is 20212120110179. The next prime is 20212120110307. The reversal of 20212120110202 is 20201102121202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20210859931201 + 1260179001 = 4495649^2 + 35499^2 .

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, 69219589273 + ... + 69219589564.

Almost surely, 2^{20212120110202} is an apocalyptic number.

20212120110202 is a deficient number, since it is larger than the sum of its proper divisors (10521377591834).

20212120110202 is a wasteful number, since it uses less digits than its factorization.

20212120110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138439178912.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20212120110202 its reverse (20201102121202), we get a palindrome (40413222231404).

The spelling of 20212120110202 in words is "twenty trillion, two hundred twelve billion, one hundred twenty million, one hundred ten thousand, two hundred two".