211122302101 has 4 divisors (see below), whose sum is σ = 211788303372. Its totient is φ = 210456300832.

The previous prime is 211122302063. The next prime is 211122302143. The reversal of 211122302101 is 101203221112.

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 98611700625 + 112510601476 = 314025^2 + 335426^2 .

It is a cyclic number.

It is not a de Polignac number, because 211122302101 - 2²¹ = 211120204949 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 (211122302701) 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, 333000160 + ... + 333000793.

It is an arithmetic number, because the mean of its divisors is an integer number (52947075843).

Almost surely, 2^211122302101 is an apocalyptic number.

It is an amenable number.

211122302101 is a deficient number, since it is larger than the sum of its proper divisors (666001271).

211122302101 is an equidigital number, since it uses as much as digits as its factorization.

211122302101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666001270.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211122302101 its reverse (101203221112), we get a palindrome (312325523213).

The spelling of 211122302101 in words is "two hundred eleven billion, one hundred twenty-two million, three hundred two thousand, one hundred one".