221202200212210 has 32 divisors (see below), whose sum is σ = 481811851221120. Its totient is φ = 71379533513472.

The previous prime is 221202200212187. The next prime is 221202200212211. The reversal of 221202200212210 is 12212002202122.

It is not an unprimeable number, because it can be changed into a prime (221202200212211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92942099740 + ... + 92942102119.

It is an arithmetic number, because the mean of its divisors is an integer number (15056620350660).

Almost surely, 2^{221202200212210} is an apocalyptic number.

221202200212210 is an abundant number, since it is smaller than the sum of its proper divisors (260609651008910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221202200212210 is a wasteful number, since it uses less digits than its factorization.

221202200212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185884201890.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221202200212210 its reverse (12212002202122), we get a palindrome (233414202414332).

The spelling of 221202200212210 in words is "two hundred twenty-one trillion, two hundred two billion, two hundred million, two hundred twelve thousand, two hundred ten".