23221405115 has 4 divisors (see below), whose sum is σ = 27865686144. Its totient is φ = 18577124088.

The previous prime is 23221405099. The next prime is 23221405121. The reversal of 23221405115 is 51150412232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23221405115 - 2⁴ = 23221405099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2322140507 + ... + 2322140516.

It is an arithmetic number, because the mean of its divisors is an integer number (6966421536).

Almost surely, 2^23221405115 is an apocalyptic number.

23221405115 is a deficient number, since it is larger than the sum of its proper divisors (4644281029).

23221405115 is an equidigital number, since it uses as much as digits as its factorization.

23221405115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644281028.

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

Adding to 23221405115 its reverse (51150412232), we get a palindrome (74371817347).

The spelling of 23221405115 in words is "twenty-three billion, two hundred twenty-one million, four hundred five thousand, one hundred fifteen".