221133222031 has 8 divisors (see below), whose sum is σ = 221415859728. Its totient is φ = 220850760000.

The previous prime is 221133221917. The next prime is 221133222043. The reversal of 221133222031 is 130222331122.

221133222031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221133222031 - 2²⁹ = 220596351119 is a prime.

It is a super-2 number, since 2×221133222031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221133221993 and 221133222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221133225031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2574051 + ... + 2658571.

It is an arithmetic number, because the mean of its divisors is an integer number (27676982466).

Almost surely, 2^221133222031 is an apocalyptic number.

221133222031 is a deficient number, since it is larger than the sum of its proper divisors (282637697).

221133222031 is a wasteful number, since it uses less digits than its factorization.

221133222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87833.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221133222031 its reverse (130222331122), we get a palindrome (351355553153).

The spelling of 221133222031 in words is "two hundred twenty-one billion, one hundred thirty-three million, two hundred twenty-two thousand, thirty-one".