22100021111021 has 8 divisors (see below), whose sum is σ = 25268162721600. Its totient is φ = 18934628434848.

The previous prime is 22100021110967. The next prime is 22100021111033. The reversal of 22100021111021 is 12011112000122.

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

It is not a de Polignac number, because 22100021111021 - 2¹⁸ = 22100020848877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22100021110987 and 22100021111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100021111081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687216371 + ... + 687248528.

It is an arithmetic number, because the mean of its divisors is an integer number (3158520340200).

Almost surely, 2^{22100021111021} is an apocalyptic number.

It is an amenable number.

22100021111021 is a deficient number, since it is larger than the sum of its proper divisors (3168141610579).

22100021111021 is a wasteful number, since it uses less digits than its factorization.

22100021111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374467203.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22100021111021 its reverse (12011112000122), we get a palindrome (34111133111143).

The spelling of 22100021111021 in words is "twenty-two trillion, one hundred billion, twenty-one million, one hundred eleven thousand, twenty-one".