23220336021 has 8 divisors (see below), whose sum is σ = 32306554560. Its totient is φ = 14807170752.

The previous prime is 23220335981. The next prime is 23220336037. The reversal of 23220336021 is 12063302232.

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

It is not a de Polignac number, because 23220336021 - 2¹⁰ = 23220334997 is a prime.

It is a super-2 number, since 2×23220336021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23220335982 and 23220336000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220334021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168263236 + ... + 168263373.

It is an arithmetic number, because the mean of its divisors is an integer number (4038319320).

Almost surely, 2^23220336021 is an apocalyptic number.

It is an amenable number.

23220336021 is a deficient number, since it is larger than the sum of its proper divisors (9086218539).

23220336021 is a wasteful number, since it uses less digits than its factorization.

23220336021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336526635.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 23220336021 its reverse (12063302232), we get a palindrome (35283638253).

It can be divided in two parts, 232 and 20336021, that added together give a triangular number (20336253 = T₆₃₇₇).

The spelling of 23220336021 in words is "twenty-three billion, two hundred twenty million, three hundred thirty-six thousand, twenty-one".