221132313002 has 4 divisors (see below), whose sum is σ = 331698469506. Its totient is φ = 110566156500.

The previous prime is 221132313001. The next prime is 221132313011. The reversal of 221132313002 is 200313231122.

221132313002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 173948219041 + 47184093961 = 417071^2 + 217219^2 .

It is a super-2 number, since 2×221132313002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221132313001) 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 as a sum of consecutive naturals, namely, 55283078249 + ... + 55283078252.

Almost surely, 2^221132313002 is an apocalyptic number.

221132313002 is a deficient number, since it is larger than the sum of its proper divisors (110566156504).

221132313002 is a wasteful number, since it uses less digits than its factorization.

221132313002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110566156503.

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

Adding to 221132313002 its reverse (200313231122), we get a palindrome (421445544124).

The spelling of 221132313002 in words is "two hundred twenty-one billion, one hundred thirty-two million, three hundred thirteen thousand, two".