212303121101 has 16 divisors (see below), whose sum is σ = 228621173760. Its totient is φ = 196514092080.

The previous prime is 212303121097. The next prime is 212303121119. The reversal of 212303121101 is 101121303212.

It is a cyclic number.

It is not a de Polignac number, because 212303121101 - 2² = 212303121097 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 212303121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212303121131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321686 + ... + 726696.

It is an arithmetic number, because the mean of its divisors is an integer number (14288823360).

Almost surely, 2^212303121101 is an apocalyptic number.

It is an amenable number.

212303121101 is a deficient number, since it is larger than the sum of its proper divisors (16318052659).

212303121101 is a wasteful number, since it uses less digits than its factorization.

212303121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405664.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212303121101 its reverse (101121303212), we get a palindrome (313424424313).

The spelling of 212303121101 in words is "two hundred twelve billion, three hundred three million, one hundred twenty-one thousand, one hundred one".