1222201122122 has 16 divisors (see below), whose sum is σ = 1838666397312. Its totient is φ = 609314038560.

The previous prime is 1222201122073. The next prime is 1222201122139. The reversal of 1222201122122 is 2212211022221.

It is a junction number, because it is equal to n+sod(n) for n = 1222201122094 and 1222201122103.

It is an unprimeable number.

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, 1000493 + ... + 1856175.

It is an arithmetic number, because the mean of its divisors is an integer number (114916649832).

Almost surely, 2^{1222201122122} is an apocalyptic number.

1222201122122 is a deficient number, since it is larger than the sum of its proper divisors (616465275190).

1222201122122 is a wasteful number, since it uses less digits than its factorization.

1222201122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857773.

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

Adding to 1222201122122 its reverse (2212211022221), we get a palindrome (3434412144343).

Subtracting 1222201122122 from its reverse (2212211022221), we obtain a palindrome (990009900099).

The spelling of 1222201122122 in words is "one trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-two".