100221222101 has 32 divisors (see below), whose sum is σ = 134867109888. Its totient is φ = 71924149440.

The previous prime is 100221222053. The next prime is 100221222103. The reversal of 100221222101 is 101222122001.

It is a de Polignac number, because none of the positive numbers 2^k-100221222101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221222103) 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, 330440 + ... + 556446.

It is an arithmetic number, because the mean of its divisors is an integer number (4214597184).

Almost surely, 2^100221222101 is an apocalyptic number.

100221222101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100221222101 is a deficient number, since it is larger than the sum of its proper divisors (34645887787).

100221222101 is a wasteful number, since it uses less digits than its factorization.

100221222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226481.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100221222101 its reverse (101222122001), we get a palindrome (201443344102).

The spelling of 100221222101 in words is "one hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred one".