22021001445 has 8 divisors (see below), whose sum is σ = 35233602336. Its totient is φ = 11744534096.

The previous prime is 22021001423. The next prime is 22021001449. The reversal of 22021001445 is 54410012022.

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 22021001445 - 2⁵ = 22021001413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021001449) 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, 734033367 + ... + 734033396.

It is an arithmetic number, because the mean of its divisors is an integer number (4404200292).

Almost surely, 2^22021001445 is an apocalyptic number.

It is an amenable number.

22021001445 is a deficient number, since it is larger than the sum of its proper divisors (13212600891).

22021001445 is a wasteful number, since it uses less digits than its factorization.

22021001445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468066771.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 22021001445 its reverse (54410012022), we get a palindrome (76431013467).

The spelling of 22021001445 in words is "twenty-two billion, twenty-one million, one thousand, four hundred forty-five".