11221212220122 has 64 divisors (see below), whose sum is σ = 24582876727680. Its totient is φ = 3398861942784.

The previous prime is 11221212220121. The next prime is 11221212220133. The reversal of 11221212220122 is 22102221212211.

It is not an unprimeable number, because it can be changed into a prime (11221212220121) 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, 107716753 + ... + 107820875.

It is an arithmetic number, because the mean of its divisors is an integer number (384107448870).

Almost surely, 2^{11221212220122} is an apocalyptic number.

11221212220122 is an abundant number, since it is smaller than the sum of its proper divisors (13361664507558).

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

11221212220122 is a wasteful number, since it uses less digits than its factorization.

11221212220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140607.

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

Adding to 11221212220122 its reverse (22102221212211), we get a palindrome (33323433432333).

The spelling of 11221212220122 in words is "eleven trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty-two".