1202221010121 has 16 divisors (see below), whose sum is σ = 1646394504384. Its totient is φ = 779766986304.

The previous prime is 1202221010119. The next prime is 1202221010141. The reversal of 1202221010121 is 1210101222021.

It is not a de Polignac number, because 1202221010121 - 2¹ = 1202221010119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202221010121.

It is not an unprimeable number, because it can be changed into a prime (1202221010141) 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, 1345291 + ... + 2052863.

It is an arithmetic number, because the mean of its divisors is an integer number (102899656524).

Almost surely, 2^{1202221010121} is an apocalyptic number.

It is an amenable number.

1202221010121 is a deficient number, since it is larger than the sum of its proper divisors (444173494263).

1202221010121 is a wasteful number, since it uses less digits than its factorization.

1202221010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722920.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1202221010121 its reverse (1210101222021), we get a palindrome (2412322232142).

The spelling of 1202221010121 in words is "one trillion, two hundred two billion, two hundred twenty-one million, ten thousand, one hundred twenty-one".