1121202212222 has 32 divisors (see below), whose sum is σ = 1711374897792. Its totient is φ = 550805059584.

The previous prime is 1121202212209. The next prime is 1121202212227. The reversal of 1121202212222 is 2222122021211.

It is a junction number, because it is equal to n+sod(n) for n = 1121202212194 and 1121202212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121202212227) 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 15 ways as a sum of consecutive naturals, for example, 81198443 + ... + 81212249.

It is an arithmetic number, because the mean of its divisors is an integer number (53480465556).

Almost surely, 2^{1121202212222} is an apocalyptic number.

1121202212222 is a deficient number, since it is larger than the sum of its proper divisors (590172685570).

1121202212222 is a wasteful number, since it uses less digits than its factorization.

1121202212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15972.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1121202212222 its reverse (2222122021211), we get a palindrome (3343324233433).

The spelling of 1121202212222 in words is "one trillion, one hundred twenty-one billion, two hundred two million, two hundred twelve thousand, two hundred twenty-two".