2221211202211 has 16 divisors (see below), whose sum is σ = 2402041758336. Its totient is φ = 2045960073216.

The previous prime is 2221211202173. The next prime is 2221211202251. The reversal of 2221211202211 is 1122021121222.

It is a cyclic number.

It is not a de Polignac number, because 2221211202211 - 2¹¹ = 2221211200163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221211202251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16934995 + ... + 17065651.

It is an arithmetic number, because the mean of its divisors is an integer number (150127609896).

Almost surely, 2^{2221211202211} is an apocalyptic number.

2221211202211 is a deficient number, since it is larger than the sum of its proper divisors (180830556125).

2221211202211 is a wasteful number, since it uses less digits than its factorization.

2221211202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151998.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221211202211 its reverse (1122021121222), we get a palindrome (3343232323433).

The spelling of 2221211202211 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, two hundred two thousand, two hundred eleven".