100222221112221 has 32 divisors (see below), whose sum is σ = 144190944640512. Its totient is φ = 61554316561920.

The previous prime is 100222221112187. The next prime is 100222221112229. The reversal of 100222221112221 is 122211122222001.

It is not a de Polignac number, because 100222221112221 - 2¹³ = 100222221104029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222221112229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578253051 + ... + 578426343.

It is an arithmetic number, because the mean of its divisors is an integer number (4505967020016).

Almost surely, 2^{100222221112221} is an apocalyptic number.

It is an amenable number.

100222221112221 is a deficient number, since it is larger than the sum of its proper divisors (43968723528291).

100222221112221 is a wasteful number, since it uses less digits than its factorization.

100222221112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202293.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 100222221112221 its reverse (122211122222001), we get a palindrome (222433343334222).

The spelling of 100222221112221 in words is "one hundred trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twenty-one".