100101222022221 has 48 divisors (see below), whose sum is σ = 169721456985600. Its totient is φ = 55651823172864.

The previous prime is 100101222022187. The next prime is 100101222022231. The reversal of 100101222022221 is 122220222101001.

It is a happy number.

100101222022221 is a `hidden beast` number, since 100 + 101 + 2 + 220 + 22 + 221 = 666.

100101222022221 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 100101222022221 - 2⁶ = 100101222022157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100101222022194 and 100101222022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101222022231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43849500 + ... + 46075818.

It is an arithmetic number, because the mean of its divisors is an integer number (3535863687200).

Almost surely, 2^{100101222022221} is an apocalyptic number.

It is an amenable number.

100101222022221 is a deficient number, since it is larger than the sum of its proper divisors (69620234963379).

100101222022221 is a wasteful number, since it uses less digits than its factorization.

100101222022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245658 (or 2245655 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 100101222022221 its reverse (122220222101001), we get a palindrome (222321444123222).

The spelling of 100101222022221 in words is "one hundred trillion, one hundred one billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty-one".