201220100111210 has 32 divisors (see below), whose sum is σ = 384100124865552. Its totient is φ = 75635269304320.

The previous prime is 201220100111209. The next prime is 201220100111213. The reversal of 201220100111210 is 12111001022102.

201220100111210 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 174980698312729 + 26239401798481 = 13228027^2 + 5122441^2 .

It is not an unprimeable number, because it can be changed into a prime (201220100111213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923173127 + ... + 923391066.

Almost surely, 2^{201220100111210} is an apocalyptic number.

201220100111210 is a deficient number, since it is larger than the sum of its proper divisors (182880024754342).

201220100111210 is a wasteful number, since it uses less digits than its factorization.

201220100111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846564858.

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

Adding to 201220100111210 its reverse (12111001022102), we get a palindrome (213331101133312).

The spelling of 201220100111210 in words is "two hundred one trillion, two hundred twenty billion, one hundred million, one hundred eleven thousand, two hundred ten".