11211220221122 has 16 divisors (see below), whose sum is σ = 17209214119680. Its totient is φ = 5474835131472.

The previous prime is 11211220221041. The next prime is 11211220221127. The reversal of 11211220221122 is 22112202211211.

It is a junction number, because it is equal to n+sod(n) for n = 11211220221094 and 11211220221103.

It is not an unprimeable number, because it can be changed into a prime (11211220221127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3752978 + ... + 6042125.

It is an arithmetic number, because the mean of its divisors is an integer number (1075575882480).

Almost surely, 2^{11211220221122} is an apocalyptic number.

11211220221122 is a deficient number, since it is larger than the sum of its proper divisors (5997993898558).

11211220221122 is a wasteful number, since it uses less digits than its factorization.

11211220221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9808457.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11211220221122 its reverse (22112202211211), we get a palindrome (33323422432333).

The spelling of 11211220221122 in words is "eleven trillion, two hundred eleven billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twenty-two".