10210021111121 has 8 divisors (see below), whose sum is σ = 11202867867240. Its totient is φ = 9246811571712.

The previous prime is 10210021111067. The next prime is 10210021111127. The reversal of 10210021111121 is 12111112001201.

It can be written as a sum of positive squares in 4 ways, for example, as 6238630225 + 10203782480896 = 78985^2 + 3194336^2 .

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

It is not a de Polignac number, because 10210021111121 - 2¹⁰ = 10210021110097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210021111096 and 10210021111105.

It is not an unprimeable number, because it can be changed into a prime (10210021111127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7409303456 + ... + 7409304833.

It is an arithmetic number, because the mean of its divisors is an integer number (1400358483405).

Almost surely, 2^{10210021111121} is an apocalyptic number.

It is an amenable number.

10210021111121 is a deficient number, since it is larger than the sum of its proper divisors (992846756119).

10210021111121 is a wasteful number, since it uses less digits than its factorization.

10210021111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14818608355.

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

Adding to 10210021111121 its reverse (12111112001201), we get a palindrome (22321133112322).

The spelling of 10210021111121 in words is "ten trillion, two hundred ten billion, twenty-one million, one hundred eleven thousand, one hundred twenty-one".