10121102203213 has 4 divisors (see below), whose sum is σ = 10145848174780. Its totient is φ = 10096356231648.

The previous prime is 10121102203187. The next prime is 10121102203229. The reversal of 10121102203213 is 31230220112101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7172182116649 + 2948920086564 = 2678093^2 + 1717242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121102203213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121102203813) 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, 12372985170 + ... + 12372985987.

It is an arithmetic number, because the mean of its divisors is an integer number (2536462043695).

Almost surely, 2^{10121102203213} is an apocalyptic number.

It is an amenable number.

10121102203213 is a deficient number, since it is larger than the sum of its proper divisors (24745971567).

10121102203213 is an equidigital number, since it uses as much as digits as its factorization.

10121102203213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24745971566.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 10121102203213 its reverse (31230220112101), we get a palindrome (41351322315314).

The spelling of 10121102203213 in words is "ten trillion, one hundred twenty-one billion, one hundred two million, two hundred three thousand, two hundred thirteen".