1202121221122 has 16 divisors (see below), whose sum is σ = 1860459891840. Its totient is φ = 582255032112.

The previous prime is 1202121221083. The next prime is 1202121221123. The reversal of 1202121221122 is 2211221212021.

It is a self number, because there is not a number n which added to its sum of digits gives 1202121221122.

It is not an unprimeable number, because it can be changed into a prime (1202121221123) 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 7 ways as a sum of consecutive naturals, for example, 71768628 + ... + 71785375.

It is an arithmetic number, because the mean of its divisors is an integer number (116278743240).

Almost surely, 2^{1202121221122} is an apocalyptic number.

1202121221122 is a deficient number, since it is larger than the sum of its proper divisors (658338670718).

1202121221122 is a wasteful number, since it uses less digits than its factorization.

1202121221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143554137.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1202121221122 its reverse (2211221212021), we get a palindrome (3413342433143).

The spelling of 1202121221122 in words is "one trillion, two hundred two billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".