2221000121122 has 16 divisors (see below), whose sum is σ = 3402458991360. Its totient is φ = 1086848177248.

The previous prime is 2221000121077. The next prime is 2221000121129. The reversal of 2221000121122 is 2211210001222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2221000121096 and 2221000121105.

It is not an unprimeable number, because it can be changed into a prime (2221000121129) 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, 4417203 + ... + 4894249.

It is an arithmetic number, because the mean of its divisors is an integer number (212653686960).

Almost surely, 2^{2221000121122} is an apocalyptic number.

2221000121122 is a deficient number, since it is larger than the sum of its proper divisors (1181458870238).

2221000121122 is a wasteful number, since it uses less digits than its factorization.

2221000121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526625.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221000121122 its reverse (2211210001222), we get a palindrome (4432210122344).

The spelling of 2221000121122 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-one thousand, one hundred twenty-two".