2201221210111 has 96 divisors (see below), whose sum is σ = 2950886479680. Its totient is φ = 1621367193600.

The previous prime is 2201221210103. The next prime is 2201221210121. The reversal of 2201221210111 is 1110121221022.

It is not a de Polignac number, because 2201221210111 - 2³ = 2201221210103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201221210121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 156318591 + ... + 156332671.

It is an arithmetic number, because the mean of its divisors is an integer number (30738400830).

Almost surely, 2^{2201221210111} is an apocalyptic number.

2201221210111 is a deficient number, since it is larger than the sum of its proper divisors (749665269569).

2201221210111 is a wasteful number, since it uses less digits than its factorization.

2201221210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14345 (or 14338 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2201221210111 its reverse (1110121221022), we get a palindrome (3311342431133).

The spelling of 2201221210111 in words is "two trillion, two hundred one billion, two hundred twenty-one million, two hundred ten thousand, one hundred eleven".