23220213501 has 8 divisors (see below), whose sum is σ = 30997189440. Its totient is φ = 15461689952.

The previous prime is 23220213479. The next prime is 23220213539. The reversal of 23220213501 is 10531202232.

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 23220213501 - 2⁹ = 23220212989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220213571) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4610160 + ... + 4615193.

It is an arithmetic number, because the mean of its divisors is an integer number (3874648680).

Almost surely, 2^23220213501 is an apocalyptic number.

It is an amenable number.

23220213501 is a deficient number, since it is larger than the sum of its proper divisors (7776975939).

23220213501 is an equidigital number, since it uses as much as digits as its factorization.

23220213501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9226195.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 23220213501 its reverse (10531202232), we get a palindrome (33751415733).

The spelling of 23220213501 in words is "twenty-three billion, two hundred twenty million, two hundred thirteen thousand, five hundred one".