2211221121011 has 16 divisors (see below), whose sum is σ = 2608704503808. Its totient is φ = 1834139916000.

The previous prime is 2211221121001. The next prime is 2211221121013. The reversal of 2211221121011 is 1101211221122.

2211221121011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2211221121011 - 2⁶ = 2211221120947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211221121013) 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, 8629901 + ... + 8882433.

It is an arithmetic number, because the mean of its divisors is an integer number (163044031488).

Almost surely, 2^{2211221121011} is an apocalyptic number.

2211221121011 is a deficient number, since it is larger than the sum of its proper divisors (397483382797).

2211221121011 is a wasteful number, since it uses less digits than its factorization.

2211221121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292922.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2211221121011 its reverse (1101211221122), we get a palindrome (3312432342133).

The spelling of 2211221121011 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, one hundred twenty-one thousand, eleven".