1222001022122 has 16 divisors (see below), whose sum is σ = 1940850191880. Its totient is φ = 575051885568.

The previous prime is 1222001022119. The next prime is 1222001022133. The reversal of 1222001022122 is 2212201002221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1115835181561 + 106165840561 = 1056331^2 + 325831^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1222001022122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3162578 + ... + 3527874.

Almost surely, 2^{1222001022122} is an apocalyptic number.

1222001022122 is a deficient number, since it is larger than the sum of its proper divisors (718849169758).

1222001022122 is a wasteful number, since it uses less digits than its factorization.

1222001022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463705.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222001022122 its reverse (2212201002221), we get a palindrome (3434202024343).

The spelling of 1222001022122 in words is "one trillion, two hundred twenty-two billion, one million, twenty-two thousand, one hundred twenty-two".