221211002202 has 16 divisors (see below), whose sum is σ = 442484149440. Its totient is φ = 73726643232.

The previous prime is 221211002191. The next prime is 221211002227. The reversal of 221211002202 is 202200112122.

221211002202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2543038 + ... + 2628585.

It is an arithmetic number, because the mean of its divisors is an integer number (27655259340).

Almost surely, 2^221211002202 is an apocalyptic number.

221211002202 is an abundant number, since it is smaller than the sum of its proper divisors (221273147238).

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

221211002202 is a wasteful number, since it uses less digits than its factorization.

221211002202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178757.

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

Adding to 221211002202 its reverse (202200112122), we get a palindrome (423411114324).

The spelling of 221211002202 in words is "two hundred twenty-one billion, two hundred eleven million, two thousand, two hundred two".