2122220201111 has 16 divisors (see below), whose sum is σ = 2187749995200. Its totient is φ = 2057659938048.

The previous prime is 2122220201081. The next prime is 2122220201119. The reversal of 2122220201111 is 1111020222212.

It is a de Polignac number, because none of the positive numbers 2^k-2122220201111 is a prime.

It is a super-2 number, since 2×2122220201111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122220201111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122220201119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8590505 + ... + 8834093.

It is an arithmetic number, because the mean of its divisors is an integer number (136734374700).

Almost surely, 2^{2122220201111} is an apocalyptic number.

2122220201111 is a deficient number, since it is larger than the sum of its proper divisors (65529794089).

2122220201111 is a wasteful number, since it uses less digits than its factorization.

2122220201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245578.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2122220201111 its reverse (1111020222212), we get a palindrome (3233240423323).

The spelling of 2122220201111 in words is "two trillion, one hundred twenty-two billion, two hundred twenty million, two hundred one thousand, one hundred eleven".