212202011101 has 4 divisors (see below), whose sum is σ = 212208007932. Its totient is φ = 212196014272.

The previous prime is 212202011071. The next prime is 212202011117. The reversal of 212202011101 is 101110202212.

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 119646118201 + 92555892900 = 345899^2 + 304230^2 .

It is a cyclic number.

It is not a de Polignac number, because 212202011101 - 2¹⁹ = 212201486813 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 (212202011201) 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, 2945020 + ... + 3016213.

It is an arithmetic number, because the mean of its divisors is an integer number (53052001983).

Almost surely, 2^212202011101 is an apocalyptic number.

It is an amenable number.

212202011101 is a deficient number, since it is larger than the sum of its proper divisors (5996831).

212202011101 is an equidigital number, since it uses as much as digits as its factorization.

212202011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996830.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212202011101 its reverse (101110202212), we get a palindrome (313312213313).

The spelling of 212202011101 in words is "two hundred twelve billion, two hundred two million, eleven thousand, one hundred one".