23221153235 has 16 divisors (see below), whose sum is σ = 31958697216. Its totient is φ = 15866804448.

The previous prime is 23221153201. The next prime is 23221153237. The reversal of 23221153235 is 53235112232.

It is a cyclic number.

It is not a de Polignac number, because 23221153235 - 2⁶ = 23221153171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23221153198 and 23221153207.

It is not an unprimeable number, because it can be changed into a prime (23221153237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162289 + ... + 1182098.

It is an arithmetic number, because the mean of its divisors is an integer number (1997418576).

Almost surely, 2^23221153235 is an apocalyptic number.

23221153235 is a deficient number, since it is larger than the sum of its proper divisors (8737543981).

23221153235 is a wasteful number, since it uses less digits than its factorization.

23221153235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344682.

The product of its digits is 10800, while the sum is 29.

Adding to 23221153235 its reverse (53235112232), we get a palindrome (76456265467).

The spelling of 23221153235 in words is "twenty-three billion, two hundred twenty-one million, one hundred fifty-three thousand, two hundred thirty-five".