100212203321 has 4 divisors (see below), whose sum is σ = 102656403444. Its totient is φ = 97768003200.

The previous prime is 100212203297. The next prime is 100212203323. The reversal of 100212203321 is 123302212001.

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 10927775296 + 89284428025 = 104536^2 + 298805^2 .

It is a cyclic number.

It is not a de Polignac number, because 100212203321 - 2⁶ = 100212203257 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 100212203321.

It is not an unprimeable number, because it can be changed into a prime (100212203323) 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, 1222100000 + ... + 1222100081.

It is an arithmetic number, because the mean of its divisors is an integer number (25664100861).

Almost surely, 2^100212203321 is an apocalyptic number.

It is an amenable number.

100212203321 is a deficient number, since it is larger than the sum of its proper divisors (2444200123).

100212203321 is an equidigital number, since it uses as much as digits as its factorization.

100212203321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444200122.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 100212203321 its reverse (123302212001), we get a palindrome (223514415322).

The spelling of 100212203321 in words is "one hundred billion, two hundred twelve million, two hundred three thousand, three hundred twenty-one".