20111120102210 has 8 divisors (see below), whose sum is σ = 36200016183996. Its totient is φ = 8044448040880.

The previous prime is 20111120102167. The next prime is 20111120102243. The reversal of 20111120102210 is 1220102111102.

It can be written as a sum of positive squares in 2 ways, for example, as 18855803774929 + 1255316327281 = 4342327^2 + 1120409^2 .

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, 1005556005101 + ... + 1005556005120.

Almost surely, 2^{20111120102210} is an apocalyptic number.

20111120102210 is a deficient number, since it is larger than the sum of its proper divisors (16088896081786).

20111120102210 is a wasteful number, since it uses less digits than its factorization.

20111120102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011112010228.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20111120102210 its reverse (1220102111102), we get a palindrome (21331222213312).

The spelling of 20111120102210 in words is "twenty trillion, one hundred eleven billion, one hundred twenty million, one hundred two thousand, two hundred ten".