2211111220201 has 32 divisors (see below), whose sum is σ = 2464481013120. Its totient is φ = 1971230570496.

The previous prime is 2211111220163. The next prime is 2211111220223. The reversal of 2211111220201 is 1020221111122.

It is a cyclic number.

It is not a de Polignac number, because 2211111220201 - 2⁹ = 2211111219689 is a prime.

It is a super-2 number, since 2×2211111220201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211111220501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8917815 + ... + 9162403.

It is an arithmetic number, because the mean of its divisors is an integer number (77015031660).

Almost surely, 2^{2211111220201} is an apocalyptic number.

It is an amenable number.

2211111220201 is a deficient number, since it is larger than the sum of its proper divisors (253369792919).

2211111220201 is a wasteful number, since it uses less digits than its factorization.

2211111220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244873.

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

Adding to 2211111220201 its reverse (1020221111122), we get a palindrome (3231332331323).

The spelling of 2211111220201 in words is "two trillion, two hundred eleven billion, one hundred eleven million, two hundred twenty thousand, two hundred one".