10210211110121 has 12 divisors (see below), whose sum is σ = 11225069730756. Its totient is φ = 9280127941920.

The previous prime is 10210211110087. The next prime is 10210211110157. The reversal of 10210211110121 is 12101111201201.

It can be written as a sum of positive squares in 2 ways, for example, as 1269991509721 + 8940219600400 = 1126939^2 + 2990020^2 .

It is not a de Polignac number, because 10210211110121 - 2²⁶ = 10210144001257 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 = 10210211110096 and 10210211110105.

It is not an unprimeable number, because it can be changed into a prime (10210211310121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7955906 + ... + 9149691.

It is an arithmetic number, because the mean of its divisors is an integer number (935422477563).

Almost surely, 2^{10210211110121} is an apocalyptic number.

10210211110121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10210211110121 is a deficient number, since it is larger than the sum of its proper divisors (1014858620635).

10210211110121 is a wasteful number, since it uses less digits than its factorization.

10210211110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17110552 (or 17110541 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10210211110121 its reverse (12101111201201), we get a palindrome (22311322311322).

The spelling of 10210211110121 in words is "ten trillion, two hundred ten billion, two hundred eleven million, one hundred ten thousand, one hundred twenty-one".