216211202 has 16 divisors (see below), whose sum is σ = 352677240. Its totient is φ = 98995968.

The previous prime is 216211199. The next prime is 216211213. The reversal of 216211202 is 202112612.

It can be written as a sum of positive squares in 4 ways, for example, as 214358881 + 1852321 = 14641^2 + 1361^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84677 + ... + 87192.

Almost surely, 2^216211202 is an apocalyptic number.

216211202 is a deficient number, since it is larger than the sum of its proper divisors (136466038).

216211202 is a wasteful number, since it uses less digits than its factorization.

216211202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171925.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 216211202 is about 14704.1219391027. The cubic root of 216211202 is about 600.1954937042.

Adding to 216211202 its reverse (202112612), we get a palindrome (418323814).

The spelling of 216211202 in words is "two hundred sixteen million, two hundred eleven thousand, two hundred two".