100122222212221 has 8 divisors (see below), whose sum is σ = 109251500819904. Its totient is φ = 90997486672320.

The previous prime is 100122222212191. The next prime is 100122222212237. The reversal of 100122222212221 is 122212222221001.

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 100122222212221 - 2¹¹ = 100122222210173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100122222212192 and 100122222212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122222212291) 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, 1135720860 + ... + 1135809013.

It is an arithmetic number, because the mean of its divisors is an integer number (13656437602488).

Almost surely, 2^{100122222212221} is an apocalyptic number.

100122222212221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100122222212221 is a deficient number, since it is larger than the sum of its proper divisors (9129278607683).

100122222212221 is a wasteful number, since it uses less digits than its factorization.

100122222212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271533891.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 100122222212221 its reverse (122212222221001), we get a palindrome (222334444433222).

The spelling of 100122222212221 in words is "one hundred trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-one".