2111220221011 has 8 divisors (see below), whose sum is σ = 2303161156800. Its totient is φ = 1919281256040.

The previous prime is 2111220221009. The next prime is 2111220221023. The reversal of 2111220221011 is 1101220221112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111220221011 - 2¹ = 2111220221009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111220221051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2580780 + ... + 3298918.

It is an arithmetic number, because the mean of its divisors is an integer number (287895144600).

Almost surely, 2^{2111220221011} is an apocalyptic number.

2111220221011 is a deficient number, since it is larger than the sum of its proper divisors (191940935789).

2111220221011 is a wasteful number, since it uses less digits than its factorization.

2111220221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985409.

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

Adding to 2111220221011 its reverse (1101220221112), we get a palindrome (3212440442123).

The spelling of 2111220221011 in words is "two trillion, one hundred eleven billion, two hundred twenty million, two hundred twenty-one thousand, eleven".