211100210211101 has 4 divisors (see below), whose sum is σ = 211101692996604. Its totient is φ = 211098727425600.

The previous prime is 211100210211097. The next prime is 211100210211151. The reversal of 211100210211101 is 101112012001112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161927508305476 + 49172701905625 = 12725074^2 + 7012325^2 .

It is a cyclic number.

It is not a de Polignac number, because 211100210211101 - 2² = 211100210211097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211100210211151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741179180 + ... + 741463941.

It is an arithmetic number, because the mean of its divisors is an integer number (52775423249151).

Almost surely, 2^{211100210211101} is an apocalyptic number.

It is an amenable number.

211100210211101 is a deficient number, since it is larger than the sum of its proper divisors (1482785503).

211100210211101 is a wasteful number, since it uses less digits than its factorization.

211100210211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482785502.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211100210211101 its reverse (101112012001112), we get a palindrome (312212222212213).

The spelling of 211100210211101 in words is "two hundred eleven trillion, one hundred billion, two hundred ten million, two hundred eleven thousand, one hundred one".