2011201221211 has 32 divisors (see below), whose sum is σ = 2594530713600. Its totient is φ = 1515268111104.

The previous prime is 2011201221199. The next prime is 2011201221251. The reversal of 2011201221211 is 1121221021102.

It is a cyclic number.

It is not a de Polignac number, because 2011201221211 - 2²³ = 2011192832603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011201221251) 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, 1687786 + ... + 2621263.

It is an arithmetic number, because the mean of its divisors is an integer number (81079084800).

Almost surely, 2^{2011201221211} is an apocalyptic number.

2011201221211 is a deficient number, since it is larger than the sum of its proper divisors (583329492389).

2011201221211 is a wasteful number, since it uses less digits than its factorization.

2011201221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309315.

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

Adding to 2011201221211 its reverse (1121221021102), we get a palindrome (3132422242313).

The spelling of 2011201221211 in words is "two trillion, eleven billion, two hundred one million, two hundred twenty-one thousand, two hundred eleven".