213220040002 has 4 divisors (see below), whose sum is σ = 319830060006. Its totient is φ = 106610020000.

The previous prime is 213220039993. The next prime is 213220040003. The reversal of 213220040002 is 200040022312.

213220040002 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., 115157743801 + 98062296201 = 339349^2 + 313149^2 .

It is not an unprimeable number, because it can be changed into a prime (213220040003) 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, 53305009999 + ... + 53305010002.

Almost surely, 2^213220040002 is an apocalyptic number.

213220040002 is a deficient number, since it is larger than the sum of its proper divisors (106610020004).

213220040002 is a wasteful number, since it uses less digits than its factorization.

213220040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106610020003.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 213220040002 its reverse (200040022312), we get a palindrome (413260062314).

The spelling of 213220040002 in words is "two hundred thirteen billion, two hundred twenty million, forty thousand, two".