100222323231 has 4 divisors (see below), whose sum is σ = 133629764312. Its totient is φ = 66814882152.

The previous prime is 100222323217. The next prime is 100222323247. The reversal of 100222323231 is 132323222001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132323222001 = 3 ⋅44107740667.

It is not a de Polignac number, because 100222323231 - 2⁹ = 100222322719 is a prime.

It is a super-2 number, since 2×100222323231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100222323198 and 100222323207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222323251) 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, 16703720536 + ... + 16703720541.

It is an arithmetic number, because the mean of its divisors is an integer number (33407441078).

Almost surely, 2^100222323231 is an apocalyptic number.

100222323231 is a deficient number, since it is larger than the sum of its proper divisors (33407441081).

100222323231 is an equidigital number, since it uses as much as digits as its factorization.

100222323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33407441080.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 100222323231 its reverse (132323222001), we get a palindrome (232545545232).

The spelling of 100222323231 in words is "one hundred billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred thirty-one".