10212211121 has 8 divisors (see below), whose sum is σ = 11689142400. Its totient is φ = 8739790848.

The previous prime is 10212211111. The next prime is 10212211127. The reversal of 10212211121 is 12111221201.

10212211121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10212211121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10212211096 and 10212211105.

It is not an unprimeable number, because it can be changed into a prime (10212211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122896 + ... + 1131953.

It is an arithmetic number, because the mean of its divisors is an integer number (1461142800).

Almost surely, 2^10212211121 is an apocalyptic number.

It is an amenable number.

10212211121 is a deficient number, since it is larger than the sum of its proper divisors (1476931279).

10212211121 is an equidigital number, since it uses as much as digits as its factorization.

10212211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255503.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10212211121 its reverse (12111221201), we get a palindrome (22323432322).

The spelling of 10212211121 in words is "ten billion, two hundred twelve million, two hundred eleven thousand, one hundred twenty-one".