100221222111 has 8 divisors (see below), whose sum is σ = 133640207664. Its totient is φ = 66808192320.

The previous prime is 100221222103. The next prime is 100221222113. The reversal of 100221222111 is 111222122001.

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

It is not a de Polignac number, because 100221222111 - 2³ = 100221222103 is a prime.

It is a super-2 number, since 2×100221222111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221222113) 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, 1449526 + ... + 1517091.

It is an arithmetic number, because the mean of its divisors is an integer number (16705025958).

Almost surely, 2^100221222111 is an apocalyptic number.

100221222111 is a deficient number, since it is larger than the sum of its proper divisors (33418985553).

100221222111 is a wasteful number, since it uses less digits than its factorization.

100221222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977881.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100221222111 its reverse (111222122001), we get a palindrome (211443344112).

The spelling of 100221222111 in words is "one hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred eleven".