221111202202 has 32 divisors (see below), whose sum is σ = 383810249664. Its totient is φ = 94418092800.

The previous prime is 221111202181. The next prime is 221111202211. The reversal of 221111202202 is 202202111122.

It is a happy number.

221111202202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 344068 + ... + 748735.

It is an arithmetic number, because the mean of its divisors is an integer number (11994070302).

Almost surely, 2^221111202202 is an apocalyptic number.

221111202202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221111202202 is a deficient number, since it is larger than the sum of its proper divisors (162699047462).

221111202202 is a wasteful number, since it uses less digits than its factorization.

221111202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093374.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221111202202 its reverse (202202111122), we get a palindrome (423313313324).

The spelling of 221111202202 in words is "two hundred twenty-one billion, one hundred eleven million, two hundred two thousand, two hundred two".