1121012220222 has 12 divisors (see below), whose sum is σ = 2428859810520. Its totient is φ = 373670740068.

The previous prime is 1121012220221. The next prime is 1121012220241. The reversal of 1121012220222 is 2220222101211.

It is a happy number.

1121012220222 is a `hidden beast` number, since 1 + 1 + 210 + 12 + 220 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 62278456679 = 1121012220222 / (1 + 1 + 2 + 1 + 0 + 1 + 2 + 2 + 2 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1121012220195 and 1121012220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121012220221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31139228322 + ... + 31139228357.

It is an arithmetic number, because the mean of its divisors is an integer number (202404984210).

Almost surely, 2^{1121012220222} is an apocalyptic number.

1121012220222 is an abundant number, since it is smaller than the sum of its proper divisors (1307847590298).

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

1121012220222 is a wasteful number, since it uses less digits than its factorization.

1121012220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62278456687 (or 62278456684 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1121012220222 its reverse (2220222101211), we get a palindrome (3341234321433).

The spelling of 1121012220222 in words is "one trillion, one hundred twenty-one billion, twelve million, two hundred twenty thousand, two hundred twenty-two".