211100110021200 has 120 divisors (see below), whose sum is σ = 676228221950176. Its totient is φ = 56293012800000.

The previous prime is 211100110021189. The next prime is 211100110021219. The reversal of 211100110021200 is 2120011001112.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234812550 + ... + 235709850.

Almost surely, 2^{211100110021200} is an apocalyptic number.

211100110021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211100110021200 is an abundant number, since it is smaller than the sum of its proper divisors (465128111928976).

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

211100110021200 is a wasteful number, since it uses less digits than its factorization.

211100110021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093373 (or 1093362 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211100110021200 its reverse (2120011001112), we get a palindrome (213220121022312).

The spelling of 211100110021200 in words is "two hundred eleven trillion, one hundred billion, one hundred ten million, twenty-one thousand, two hundred".