1001122120222 has 12 divisors (see below), whose sum is σ = 1746855944640. Its totient is φ = 429052337196.

The previous prime is 1001122120183. The next prime is 1001122120223. The reversal of 1001122120222 is 2220212211001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001122120196 and 1001122120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001122120223) 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 5 ways as a sum of consecutive naturals, for example, 5107765822 + ... + 5107766017.

It is an arithmetic number, because the mean of its divisors is an integer number (145571328720).

Almost surely, 2^{1001122120222} is an apocalyptic number.

1001122120222 is a deficient number, since it is larger than the sum of its proper divisors (745733824418).

1001122120222 is a wasteful number, since it uses less digits than its factorization.

1001122120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215531855 (or 10215531848 counting only the distinct ones).

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

Adding to 1001122120222 its reverse (2220212211001), we get a palindrome (3221334331223).

The spelling of 1001122120222 in words is "one trillion, one billion, one hundred twenty-two million, one hundred twenty thousand, two hundred twenty-two".