10212102102121 has 4 divisors (see below), whose sum is σ = 10219797734272. Its totient is φ = 10204406469972.

The previous prime is 10212102102119. The next prime is 10212102102127. The reversal of 10212102102121 is 12120120121201.

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 10212102102121 - 2¹ = 10212102102119 is a prime.

It is a super-2 number, since 2×10212102102121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212102102095 and 10212102102104.

It is not an unprimeable number, because it can be changed into a prime (10212102102127) 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, 3847814085 + ... + 3847816738.

It is an arithmetic number, because the mean of its divisors is an integer number (2554949433568).

Almost surely, 2^{10212102102121} is an apocalyptic number.

It is an amenable number.

10212102102121 is a deficient number, since it is larger than the sum of its proper divisors (7695632151).

10212102102121 is an equidigital number, since it uses as much as digits as its factorization.

10212102102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7695632150.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10212102102121 its reverse (12120120121201), we get a palindrome (22332222223322).

The spelling of 10212102102121 in words is "ten trillion, two hundred twelve billion, one hundred two million, one hundred two thousand, one hundred twenty-one".