100231313223221 has 8 divisors (see below), whose sum is σ = 103484920571904. Its totient is φ = 96978977073360.

The previous prime is 100231313223199. The next prime is 100231313223263. The reversal of 100231313223221 is 122322313132001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100231313223221 - 2¹⁴ = 100231313206837 is a prime.

It is a super-2 number, since 2×100231313223221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231313223281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317639450 + ... + 317954843.

It is an arithmetic number, because the mean of its divisors is an integer number (12935615071488).

Almost surely, 2^{100231313223221} is an apocalyptic number.

It is an amenable number.

100231313223221 is a deficient number, since it is larger than the sum of its proper divisors (3253607348683).

100231313223221 is an equidigital number, since it uses as much as digits as its factorization.

100231313223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635599411.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 100231313223221 its reverse (122322313132001), we get a palindrome (222553626355222).

The spelling of 100231313223221 in words is "one hundred trillion, two hundred thirty-one billion, three hundred thirteen million, two hundred twenty-three thousand, two hundred twenty-one".