221323021033 has 8 divisors (see below), whose sum is σ = 222962068800. Its totient is φ = 219688108368.

The previous prime is 221323020991. The next prime is 221323021069. The reversal of 221323021033 is 330120323122.

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 221323021033 - 2⁹ = 221323020521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221323020995 and 221323021013.

It is not an unprimeable number, because it can be changed into a prime (221323021133) 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, 926293 + ... + 1140466.

It is an arithmetic number, because the mean of its divisors is an integer number (27870258600).

Almost surely, 2^221323021033 is an apocalyptic number.

It is an amenable number.

221323021033 is a deficient number, since it is larger than the sum of its proper divisors (1639047767).

221323021033 is a wasteful number, since it uses less digits than its factorization.

221323021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067551.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 221323021033 its reverse (330120323122), we get a palindrome (551443344155).

The spelling of 221323021033 in words is "two hundred twenty-one billion, three hundred twenty-three million, twenty-one thousand, thirty-three".