100011222021 has 16 divisors (see below), whose sum is σ = 134232123200. Its totient is φ = 66232453248.

The previous prime is 100011222001. The next prime is 100011222049. The reversal of 100011222021 is 120222110001.

It is not a de Polignac number, because 100011222021 - 2⁶ = 100011221957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100011221988 and 100011222006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011222001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1961985 + ... + 2012313.

It is an arithmetic number, because the mean of its divisors is an integer number (8389507700).

Almost surely, 2^100011222021 is an apocalyptic number.

It is an amenable number.

100011222021 is a deficient number, since it is larger than the sum of its proper divisors (34220901179).

100011222021 is a wasteful number, since it uses less digits than its factorization.

100011222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54708.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100011222021 its reverse (120222110001), we get a palindrome (220233332022).

The spelling of 100011222021 in words is "one hundred billion, eleven million, two hundred twenty-two thousand, twenty-one".