22266144421 has 8 divisors (see below), whose sum is σ = 22941183704. Its totient is φ = 21601105920.

The previous prime is 22266144409. The next prime is 22266144463. The reversal of 22266144421 is 12444166222.

It can be written as a sum of positive squares in 4 ways, for example, as 1028196 + 22265116225 = 1014^2 + 149215^2 .

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 22266144421 - 2⁵ = 22266144389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22266144491) 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, 2495676 + ... + 2504581.

It is an arithmetic number, because the mean of its divisors is an integer number (2867647963).

Almost surely, 2^22266144421 is an apocalyptic number.

It is an amenable number.

22266144421 is a deficient number, since it is larger than the sum of its proper divisors (675039283).

22266144421 is an equidigital number, since it uses as much as digits as its factorization.

22266144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000391.

The product of its digits is 36864, while the sum is 34.

The spelling of 22266144421 in words is "twenty-two billion, two hundred sixty-six million, one hundred forty-four thousand, four hundred twenty-one".