1202010210121 has 4 divisors (see below), whose sum is σ = 1373725954432. Its totient is φ = 1030294465812.

The previous prime is 1202010210053. The next prime is 1202010210127. The reversal of 1202010210121 is 1210120102021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1202010210121 - 2¹¹ = 1202010208073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202010210127) 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 3 ways as a sum of consecutive naturals, for example, 85857872145 + ... + 85857872158.

It is an arithmetic number, because the mean of its divisors is an integer number (343431488608).

Almost surely, 2^{1202010210121} is an apocalyptic number.

It is an amenable number.

1202010210121 is a deficient number, since it is larger than the sum of its proper divisors (171715744311).

1202010210121 is an equidigital number, since it uses as much as digits as its factorization.

1202010210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171715744310.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1202010210121 its reverse (1210120102021), we get a palindrome (2412130312142).

The spelling of 1202010210121 in words is "one trillion, two hundred two billion, ten million, two hundred ten thousand, one hundred twenty-one".