22081355 has 8 divisors (see below), whose sum is σ = 26871264. Its totient is φ = 17416000.

The previous prime is 22081349. The next prime is 22081373. The reversal of 22081355 is 55318022.

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

It is not a de Polignac number, because 22081355 - 2⁶ = 22081291 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, 30746 + ... + 31455.

It is an arithmetic number, because the mean of its divisors is an integer number (3358908).

Almost surely, 2^22081355 is an apocalyptic number.

22081355 is a deficient number, since it is larger than the sum of its proper divisors (4789909).

22081355 is an equidigital number, since it uses as much as digits as its factorization.

22081355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62277.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 22081355 is about 4699.0802291512. The cubic root of 22081355 is about 280.5489019905.

Adding to 22081355 its reverse (55318022), we get a palindrome (77399377).

The spelling of 22081355 in words is "twenty-two million, eighty-one thousand, three hundred fifty-five".