221002313133 has 16 divisors (see below), whose sum is σ = 336774464640. Its totient is φ = 126283647936.

The previous prime is 221002313123. The next prime is 221002313171. The reversal of 221002313133 is 331313200122.

It is not a de Polignac number, because 221002313133 - 2⁶ = 221002313069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002313123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808891 + ... + 1047047.

It is an arithmetic number, because the mean of its divisors is an integer number (21048404040).

Almost surely, 2^221002313133 is an apocalyptic number.

It is an amenable number.

221002313133 is a deficient number, since it is larger than the sum of its proper divisors (115772151507).

221002313133 is a wasteful number, since it uses less digits than its factorization.

221002313133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282356.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 221002313133 its reverse (331313200122), we get a palindrome (552315513255).

The spelling of 221002313133 in words is "two hundred twenty-one billion, two million, three hundred thirteen thousand, one hundred thirty-three".