221213010233 has 4 divisors (see below), whose sum is σ = 222324633600. Its totient is φ = 220101386868.

The previous prime is 221213010197. The next prime is 221213010281. The reversal of 221213010233 is 332010312122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221213010233 - 2⁶ = 221213010169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221213018233) 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 3 ways as a sum of consecutive naturals, for example, 555811385 + ... + 555811782.

It is an arithmetic number, because the mean of its divisors is an integer number (55581158400).

Almost surely, 2^221213010233 is an apocalyptic number.

It is an amenable number.

221213010233 is a deficient number, since it is larger than the sum of its proper divisors (1111623367).

221213010233 is a wasteful number, since it uses less digits than its factorization.

221213010233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111623366.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 221213010233 its reverse (332010312122), we get a palindrome (553223322355).

The spelling of 221213010233 in words is "two hundred twenty-one billion, two hundred thirteen million, ten thousand, two hundred thirty-three".