1202120444121 has 32 divisors (see below), whose sum is σ = 1733503516800. Its totient is φ = 738408337920.

The previous prime is 1202120444111. The next prime is 1202120444137. The reversal of 1202120444121 is 1214440212021.

It is a happy number.

It is not a de Polignac number, because 1202120444121 - 2⁹ = 1202120443609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1202120444091 and 1202120444100.

It is not an unprimeable number, because it can be changed into a prime (1202120444111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5031315 + ... + 5264823.

It is an arithmetic number, because the mean of its divisors is an integer number (54171984900).

Almost surely, 2^{1202120444121} is an apocalyptic number.

It is an amenable number.

1202120444121 is a deficient number, since it is larger than the sum of its proper divisors (531383072679).

1202120444121 is a wasteful number, since it uses less digits than its factorization.

1202120444121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236009.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 1202120444121 its reverse (1214440212021), we get a palindrome (2416560656142).

The spelling of 1202120444121 in words is "one trillion, two hundred two billion, one hundred twenty million, four hundred forty-four thousand, one hundred twenty-one".