23221455355 has 16 divisors (see below), whose sum is σ = 32873877504. Its totient is φ = 15409628640.

The previous prime is 23221455353. The next prime is 23221455373. The reversal of 23221455355 is 55355412232.

It is not a de Polignac number, because 23221455355 - 2¹ = 23221455353 is a prime.

It is a super-3 number, since 3×23221455355³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221455353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10700047 + ... + 10702216.

It is an arithmetic number, because the mean of its divisors is an integer number (2054617344).

Almost surely, 2^23221455355 is an apocalyptic number.

23221455355 is a deficient number, since it is larger than the sum of its proper divisors (9652422149).

23221455355 is a wasteful number, since it uses less digits than its factorization.

23221455355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21402306.

The product of its digits is 180000, while the sum is 37.

Adding to 23221455355 its reverse (55355412232), we get a palindrome (78576867587).

The spelling of 23221455355 in words is "twenty-three billion, two hundred twenty-one million, four hundred fifty-five thousand, three hundred fifty-five".