2111201222211 has 24 divisors (see below), whose sum is σ = 3057678539760. Its totient is φ = 1403700316416.

The previous prime is 2111201222203. The next prime is 2111201222231. The reversal of 2111201222211 is 1122221021112.

2111201222211 is a `hidden beast` number, since 21 + 11 + 201 + 222 + 211 = 666.

It is not a de Polignac number, because 2111201222211 - 2³ = 2111201222203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111201222231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16341876 + ... + 16470558.

It is an arithmetic number, because the mean of its divisors is an integer number (127403272490).

Almost surely, 2^{2111201222211} is an apocalyptic number.

2111201222211 is a deficient number, since it is larger than the sum of its proper divisors (946477317549).

2111201222211 is a wasteful number, since it uses less digits than its factorization.

2111201222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133555 (or 133552 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2111201222211 its reverse (1122221021112), we get a palindrome (3233422243323).

The spelling of 2111201222211 in words is "two trillion, one hundred eleven billion, two hundred one million, two hundred twenty-two thousand, two hundred eleven".