2111202221011 has 16 divisors (see below), whose sum is σ = 2399580467200. Its totient is φ = 1841362111008.

The previous prime is 2111202220991. The next prime is 2111202221021. The reversal of 2111202221011 is 1101222021112.

It is a cyclic number.

It is not a de Polignac number, because 2111202221011 - 2¹⁷ = 2111202089939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111202221021) 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, 11182611 + ... + 11369836.

It is an arithmetic number, because the mean of its divisors is an integer number (149973779200).

Almost surely, 2^{2111202221011} is an apocalyptic number.

2111202221011 is a deficient number, since it is larger than the sum of its proper divisors (288378246189).

2111202221011 is a wasteful number, since it uses less digits than its factorization.

2111202221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22552858.

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

Adding to 2111202221011 its reverse (1101222021112), we get a palindrome (3212424242123).

The spelling of 2111202221011 in words is "two trillion, one hundred eleven billion, two hundred two million, two hundred twenty-one thousand, eleven".