2211021220011 has 16 divisors (see below), whose sum is σ = 2976999667200. Its totient is φ = 1459531823040.

The previous prime is 2211021219943. The next prime is 2211021220097. The reversal of 2211021220011 is 1100221201122.

It is not a de Polignac number, because 2211021220011 - 2¹⁸ = 2211020957867 is a prime.

It is a super-2 number, since 2×2211021220011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2211021220411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241031 + ... + 3073151.

It is an arithmetic number, because the mean of its divisors is an integer number (186062479200).

Almost surely, 2^{2211021220011} is an apocalyptic number.

2211021220011 is a deficient number, since it is larger than the sum of its proper divisors (765978447189).

2211021220011 is a wasteful number, since it uses less digits than its factorization.

2211021220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840826.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2211021220011 its reverse (1100221201122), we get a palindrome (3311242421133).

The spelling of 2211021220011 in words is "two trillion, two hundred eleven billion, twenty-one million, two hundred twenty thousand, eleven".