100022122221 has 8 divisors (see below), whose sum is σ = 152414662464. Its totient is φ = 57155498400.

The previous prime is 100022122153. The next prime is 100022122243. The reversal of 100022122221 is 122221220001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100022122221 - 2¹⁷ = 100021991149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100022122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022120221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2381479080 + ... + 2381479121.

It is an arithmetic number, because the mean of its divisors is an integer number (19051832808).

Almost surely, 2^100022122221 is an apocalyptic number.

It is an amenable number.

100022122221 is a deficient number, since it is larger than the sum of its proper divisors (52392540243).

100022122221 is an equidigital number, since it uses as much as digits as its factorization.

100022122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4762958211.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100022122221 its reverse (122221220001), we get a palindrome (222243342222).

The spelling of 100022122221 in words is "one hundred billion, twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".