11221221022122 has 64 divisors (see below), whose sum is σ = 22553798400000. Its totient is φ = 3721906584000.

The previous prime is 11221221022021. The next prime is 11221221022129. The reversal of 11221221022122 is 22122012212211.

It is not an unprimeable number, because it can be changed into a prime (11221221022129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2039848372 + ... + 2039853872.

It is an arithmetic number, because the mean of its divisors is an integer number (352403100000).

Almost surely, 2^{11221221022122} is an apocalyptic number.

11221221022122 is an abundant number, since it is smaller than the sum of its proper divisors (11332577377878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221221022122 is a wasteful number, since it uses less digits than its factorization.

11221221022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7891.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11221221022122 its reverse (22122012212211), we get a palindrome (33343233234333).

The spelling of 11221221022122 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-one million, twenty-two thousand, one hundred twenty-two".