22113421345 has 8 divisors (see below), whose sum is σ = 27036787176. Its totient is φ = 17356949376.

The previous prime is 22113421321. The next prime is 22113421367. The reversal of 22113421345 is 54312431122.

It can be written as a sum of positive squares in 4 ways, for example, as 10632084544 + 11481336801 = 103112^2 + 107151^2 .

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 22113421345 - 2¹⁷ = 22113290273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41723172 + ... + 41723701.

It is an arithmetic number, because the mean of its divisors is an integer number (3379598397).

Almost surely, 2^22113421345 is an apocalyptic number.

It is an amenable number.

22113421345 is a deficient number, since it is larger than the sum of its proper divisors (4923365831).

22113421345 is an equidigital number, since it uses as much as digits as its factorization.

22113421345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83446931.

The product of its digits is 5760, while the sum is 28.

Adding to 22113421345 its reverse (54312431122), we get a palindrome (76425852467).

The spelling of 22113421345 in words is "twenty-two billion, one hundred thirteen million, four hundred twenty-one thousand, three hundred forty-five".