100022222021 has 16 divisors (see below), whose sum is σ = 103493913600. Its totient is φ = 96566169600.

The previous prime is 100022222017. The next prime is 100022222033. The reversal of 100022222021 is 120222220001.

It is a cyclic number.

It is not a de Polignac number, because 100022222021 - 2² = 100022222017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100022221987 and 100022222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022222011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31442051 + ... + 31445231.

It is an arithmetic number, because the mean of its divisors is an integer number (6468369600).

Almost surely, 2^100022222021 is an apocalyptic number.

It is an amenable number.

100022222021 is a deficient number, since it is larger than the sum of its proper divisors (3471691579).

100022222021 is a wasteful number, since it uses less digits than its factorization.

100022222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 100022222021 its reverse (120222220001), we get a palindrome (220244442022).

The spelling of 100022222021 in words is "one hundred billion, twenty-two million, two hundred twenty-two thousand, twenty-one".