100221200213 has 4 divisors (see below), whose sum is σ = 100397336460. Its totient is φ = 100045063968.

The previous prime is 100221200179. The next prime is 100221200227. The reversal of 100221200213 is 312002122001.

It is a happy number.

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 9211584529 + 91009615684 = 95977^2 + 301678^2 .

It is a cyclic number.

It is not a de Polignac number, because 100221200213 - 2²² = 100217005909 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 (100221200273) 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, 88067270 + ... + 88068407.

It is an arithmetic number, because the mean of its divisors is an integer number (25099334115).

Almost surely, 2^100221200213 is an apocalyptic number.

It is an amenable number.

100221200213 is a deficient number, since it is larger than the sum of its proper divisors (176136247).

100221200213 is an equidigital number, since it uses as much as digits as its factorization.

100221200213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176136246.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 100221200213 its reverse (312002122001), we get a palindrome (412223322214).

The spelling of 100221200213 in words is "one hundred billion, two hundred twenty-one million, two hundred thousand, two hundred thirteen".