22320331220021 has 8 divisors (see below), whose sum is σ = 22325556089088. Its totient is φ = 22315106644000.

The previous prime is 22320331219987. The next prime is 22320331220023. The reversal of 22320331220021 is 12002213302322.

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-22320331220021 is a prime.

It is a super-3 number, since 3×22320331220021³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22320331220023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240394076 + ... + 240486906.

It is an arithmetic number, because the mean of its divisors is an integer number (2790694511136).

Almost surely, 2^{22320331220021} is an apocalyptic number.

It is an amenable number.

22320331220021 is a deficient number, since it is larger than the sum of its proper divisors (5224869067).

22320331220021 is an equidigital number, since it uses as much as digits as its factorization.

22320331220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146523.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22320331220021 its reverse (12002213302322), we get a palindrome (34322544522343).

The spelling of 22320331220021 in words is "twenty-two trillion, three hundred twenty billion, three hundred thirty-one million, two hundred twenty thousand, twenty-one".