10121202202121 has 4 divisors (see below), whose sum is σ = 10135278979200. Its totient is φ = 10107125425044.

The previous prime is 10121202202037. The next prime is 10121202202129. The reversal of 10121202202121 is 12120220212101.

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 a de Polignac number, because none of the positive numbers 2^k-10121202202121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10121202202121.

It is not an unprimeable number, because it can be changed into a prime (10121202202129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7038387461 + ... + 7038388898.

It is an arithmetic number, because the mean of its divisors is an integer number (2533819744800).

Almost surely, 2^{10121202202121} is an apocalyptic number.

It is an amenable number.

10121202202121 is a deficient number, since it is larger than the sum of its proper divisors (14076777079).

10121202202121 is an equidigital number, since it uses as much as digits as its factorization.

10121202202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076777078.

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

Adding to 10121202202121 its reverse (12120220212101), we get a palindrome (22241422414222).

The spelling of 10121202202121 in words is "ten trillion, one hundred twenty-one billion, two hundred two million, two hundred two thousand, one hundred twenty-one".