100221222121101 has 12 divisors (see below), whose sum is σ = 144764108906560. Its totient is φ = 66814092050760.

The previous prime is 100221222121099. The next prime is 100221222121151. The reversal of 100221222121101 is 101121222122001.

100221222121101 is a `hidden beast` number, since 1 + 0 + 0 + 221 + 222 + 121 + 101 = 666.

It is not a de Polignac number, because 100221222121101 - 2¹ = 100221222121099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221222121151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8662860 + ... + 16597818.

Almost surely, 2^{100221222121101} is an apocalyptic number.

It is an amenable number.

100221222121101 is a deficient number, since it is larger than the sum of its proper divisors (44542886785459).

100221222121101 is a wasteful number, since it uses less digits than its factorization.

100221222121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9338336 (or 9338333 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 100221222121101 its reverse (101121222122001), we get a palindrome (201342444243102).

The spelling of 100221222121101 in words is "one hundred trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred one".