201100102123211 has 4 divisors (see below), whose sum is σ = 201100346882424. Its totient is φ = 201099857364000.

The previous prime is 201100102123181. The next prime is 201100102123241. The reversal of 201100102123211 is 112321201001102.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (201100102123181) and next prime (201100102123241).

It is a cyclic number.

It is not a de Polignac number, because 201100102123211 - 2¹⁸ = 201100101861067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201100102123211.

It is not an unprimeable number, because it can be changed into a prime (201100102123241) 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, 121143005 + ... + 122791806.

It is an arithmetic number, because the mean of its divisors is an integer number (50275086720606).

Almost surely, 2^{201100102123211} is an apocalyptic number.

201100102123211 is a deficient number, since it is larger than the sum of its proper divisors (244759213).

201100102123211 is an equidigital number, since it uses as much as digits as its factorization.

201100102123211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244759212.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 201100102123211 its reverse (112321201001102), we get a palindrome (313421303124313).

The spelling of 201100102123211 in words is "two hundred one trillion, one hundred billion, one hundred two million, one hundred twenty-three thousand, two hundred eleven".