1202120112221 has 16 divisors (see below), whose sum is σ = 1375155683328. Its totient is φ = 1029410866800.

The previous prime is 1202120112187. The next prime is 1202120112239. The reversal of 1202120112221 is 1222110212021.

It is not a de Polignac number, because 1202120112221 - 2¹⁰ = 1202120111197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202120112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202120115221) 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 15 ways as a sum of consecutive naturals, for example, 93101756 + ... + 93114666.

It is an arithmetic number, because the mean of its divisors is an integer number (85947230208).

Almost surely, 2^{1202120112221} is an apocalyptic number.

It is an amenable number.

1202120112221 is a deficient number, since it is larger than the sum of its proper divisors (173035571107).

1202120112221 is a wasteful number, since it uses less digits than its factorization.

1202120112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24512.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1202120112221 its reverse (1222110212021), we get a palindrome (2424230324242).

The spelling of 1202120112221 in words is "one trillion, two hundred two billion, one hundred twenty million, one hundred twelve thousand, two hundred twenty-one".