223021332021 has 8 divisors (see below), whose sum is σ = 297877136704. Its totient is φ = 148423207680.

The previous prime is 223021331993. The next prime is 223021332031. The reversal of 223021332021 is 120233120322.

It is a happy number.

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

It is not a de Polignac number, because 223021332021 - 2¹⁷ = 223021200949 is a prime.

It is a super-2 number, since 2×223021332021² (a number of 23 digits) contains 22 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 (223021332031) 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, 64418065 + ... + 64421526.

It is an arithmetic number, because the mean of its divisors is an integer number (37234642088).

Almost surely, 2^223021332021 is an apocalyptic number.

It is an amenable number.

223021332021 is a deficient number, since it is larger than the sum of its proper divisors (74855804683).

223021332021 is a wasteful number, since it uses less digits than its factorization.

223021332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128840171.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 223021332021 its reverse (120233120322), we get a palindrome (343254452343).

The spelling of 223021332021 in words is "two hundred twenty-three billion, twenty-one million, three hundred thirty-two thousand, twenty-one".