2201221222211 has 16 divisors (see below), whose sum is σ = 2435800308480. Its totient is φ = 1972496663520.

The previous prime is 2201221222171. The next prime is 2201221222273. The reversal of 2201221222211 is 1122221221022.

It is a cyclic number.

It is not a de Polignac number, because 2201221222211 - 2⁶ = 2201221222147 is a prime.

It is a super-2 number, since 2×2201221222211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2201221221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2345180 + ... + 3146793.

It is an arithmetic number, because the mean of its divisors is an integer number (152237519280).

Almost surely, 2^{2201221222211} is an apocalyptic number.

2201221222211 is a deficient number, since it is larger than the sum of its proper divisors (234579086269).

2201221222211 is a wasteful number, since it uses less digits than its factorization.

2201221222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5492506.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2201221222211 its reverse (1122221221022), we get a palindrome (3323442443233).

The spelling of 2201221222211 in words is "two trillion, two hundred one billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred eleven".