10210211111121 has 12 divisors (see below), whose sum is σ = 15836245805232. Its totient is φ = 5834406349128.

The previous prime is 10210211111117. The next prime is 10210211111141. The reversal of 10210211111121 is 12111111201201.

It is not a de Polignac number, because 10210211111121 - 2² = 10210211111117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10210211111121.

It is not an unprimeable number, because it can be changed into a prime (10210211111141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34728609075 + ... + 34728609368.

It is an arithmetic number, because the mean of its divisors is an integer number (1319687150436).

Almost surely, 2^{10210211111121} is an apocalyptic number.

It is an amenable number.

10210211111121 is a deficient number, since it is larger than the sum of its proper divisors (5626034694111).

10210211111121 is an equidigital number, since it uses as much as digits as its factorization.

10210211111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69457218460 (or 69457218453 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10210211111121 its reverse (12111111201201), we get a palindrome (22321322312322).

The spelling of 10210211111121 in words is "ten trillion, two hundred ten billion, two hundred eleven million, one hundred eleven thousand, one hundred twenty-one".