221100002210202 has 32 divisors (see below), whose sum is σ = 443648769587712. Its totient is φ = 73458897334704.

The previous prime is 221100002210179. The next prime is 221100002210239. The reversal of 221100002210202 is 202012200001122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42207558 + ... + 47155889.

It is an arithmetic number, because the mean of its divisors is an integer number (13864024049616).

Almost surely, 2^{221100002210202} is an apocalyptic number.

221100002210202 is an abundant number, since it is smaller than the sum of its proper divisors (222548767377510).

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

221100002210202 is a wasteful number, since it uses less digits than its factorization.

221100002210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89364802.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221100002210202 its reverse (202012200001122), we get a palindrome (423112202211324).

The spelling of 221100002210202 in words is "two hundred twenty-one trillion, one hundred billion, two million, two hundred ten thousand, two hundred two".