22320100021 has 8 divisors (see below), whose sum is σ = 22477383000. Its totient is φ = 22162917120.

The previous prime is 22320099973. The next prime is 22320100051. The reversal of 22320100021 is 12000102322.

It can be written as a sum of positive squares in 4 ways, for example, as 6623518225 + 15696581796 = 81385^2 + 125286^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22320100021 is a prime.

It is a super-3 number, since 3×22320100021³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22320099974 and 22320100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22320100051) 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, 454801 + ... + 501481.

It is an arithmetic number, because the mean of its divisors is an integer number (2809672875).

Almost surely, 2^22320100021 is an apocalyptic number.

It is an amenable number.

22320100021 is a deficient number, since it is larger than the sum of its proper divisors (157282979).

22320100021 is a wasteful number, since it uses less digits than its factorization.

22320100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50039.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22320100021 its reverse (12000102322), we get a palindrome (34320202343).

The spelling of 22320100021 in words is "twenty-two billion, three hundred twenty million, one hundred thousand, twenty-one".