2122111220011 has 4 divisors (see below), whose sum is σ = 2122142698800. Its totient is φ = 2122079741224.

The previous prime is 2122111219973. The next prime is 2122111220029. The reversal of 2122111220011 is 1100221112212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122111220011 - 2⁷ = 2122111219883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122111220051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15638056 + ... + 15773173.

It is an arithmetic number, because the mean of its divisors is an integer number (530535674700).

Almost surely, 2^{2122111220011} is an apocalyptic number.

2122111220011 is a deficient number, since it is larger than the sum of its proper divisors (31478789).

2122111220011 is an equidigital number, since it uses as much as digits as its factorization.

2122111220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31478788.

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

Adding to 2122111220011 its reverse (1100221112212), we get a palindrome (3222332332223).

The spelling of 2122111220011 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twenty thousand, eleven".