223221332021 has 8 divisors (see below), whose sum is σ = 239969182080. Its totient is φ = 206973417888.

The previous prime is 223221331909. The next prime is 223221332023. The reversal of 223221332021 is 120233122322.

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 223221332021 - 2¹⁴ = 223221315637 is a prime.

It is a super-3 number, since 3×223221332021³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223221332023) 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, 124983056 + ... + 124984841.

It is an arithmetic number, because the mean of its divisors is an integer number (29996147760).

Almost surely, 2^223221332021 is an apocalyptic number.

It is an amenable number.

223221332021 is a deficient number, since it is larger than the sum of its proper divisors (16747850059).

223221332021 is a wasteful number, since it uses less digits than its factorization.

223221332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249967963.

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

Adding to 223221332021 its reverse (120233122322), we get a palindrome (343454454343).

The spelling of 223221332021 in words is "two hundred twenty-three billion, two hundred twenty-one million, three hundred thirty-two thousand, twenty-one".