20111200211210 has 64 divisors (see below), whose sum is σ = 40236630819840. Its totient is φ = 7202853442560.

The previous prime is 20111200211203. The next prime is 20111200211231. The reversal of 20111200211210 is 1211200211102.

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 31 ways as a sum of consecutive naturals, for example, 32029469 + ... + 32651328.

It is an arithmetic number, because the mean of its divisors is an integer number (628697356560).

Almost surely, 2^{20111200211210} is an apocalyptic number.

20111200211210 is an abundant number, since it is smaller than the sum of its proper divisors (20125430608630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111200211210 is a wasteful number, since it uses less digits than its factorization.

20111200211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64680911.

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

Adding to 20111200211210 its reverse (1211200211102), we get a palindrome (21322400422312).

The spelling of 20111200211210 in words is "twenty trillion, one hundred eleven billion, two hundred million, two hundred eleven thousand, two hundred ten".