100221111211 has 8 divisors (see below), whose sum is σ = 114279276384. Its totient is φ = 87069924480.

The previous prime is 100221111203. The next prime is 100221111241. The reversal of 100221111211 is 112111122001.

It is a happy number.

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 100221111211 - 2³ = 100221111203 is a prime.

It is a super-2 number, since 2×100221111211² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 100221111191 and 100221111200.

It is not an unprimeable number, because it can be changed into a prime (100221111241) 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, 226744375 + ... + 226744816.

It is an arithmetic number, because the mean of its divisors is an integer number (14284909548).

Almost surely, 2^100221111211 is an apocalyptic number.

100221111211 is a deficient number, since it is larger than the sum of its proper divisors (14058165173).

100221111211 is a wasteful number, since it uses less digits than its factorization.

100221111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453489221.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100221111211 its reverse (112111122001), we get a palindrome (212332233212).

The spelling of 100221111211 in words is "one hundred billion, two hundred twenty-one million, one hundred eleven thousand, two hundred eleven".