22021001123 has 8 divisors (see below), whose sum is σ = 24109638960. Its totient is φ = 19946818080.

The previous prime is 22021001099. The next prime is 22021001173. The reversal of 22021001123 is 32110012022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22021001123 - 2²⁴ = 22004223907 is a prime.

It is a super-2 number, since 2×22021001123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22021001098 and 22021001107.

It is not an unprimeable number, because it can be changed into a prime (22021001173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3610508 + ... + 3616601.

It is an arithmetic number, because the mean of its divisors is an integer number (3013704870).

Almost surely, 2^22021001123 is an apocalyptic number.

22021001123 is a deficient number, since it is larger than the sum of its proper divisors (2088637837).

22021001123 is a wasteful number, since it uses less digits than its factorization.

22021001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227397.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22021001123 its reverse (32110012022), we get a palindrome (54131013145).

The spelling of 22021001123 in words is "twenty-two billion, twenty-one million, one thousand, one hundred twenty-three".