211200102021101 has 4 divisors (see below), whose sum is σ = 211277154231804. Its totient is φ = 211123049810400.

The previous prime is 211200102021071. The next prime is 211200102021107. The reversal of 211200102021101 is 101120201002112.

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 135175478997001 + 76024623024100 = 11626499^2 + 8719210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211200102021101 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 (211200102021107) 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, 38526101240 + ... + 38526106721.

It is an arithmetic number, because the mean of its divisors is an integer number (52819288557951).

Almost surely, 2^{211200102021101} is an apocalyptic number.

It is an amenable number.

211200102021101 is a deficient number, since it is larger than the sum of its proper divisors (77052210703).

211200102021101 is an equidigital number, since it uses as much as digits as its factorization.

211200102021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77052210702.

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

Adding to 211200102021101 its reverse (101120201002112), we get a palindrome (312320303023213).

The spelling of 211200102021101 in words is "two hundred eleven trillion, two hundred billion, one hundred two million, twenty-one thousand, one hundred one".