10210120011121 has 4 divisors (see below), whose sum is σ = 10211851426212. Its totient is φ = 10208388596032.

The previous prime is 10210120011101. The next prime is 10210120011127. The reversal of 10210120011121 is 12111002101201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8932566787600 + 1277553223521 = 2988740^2 + 1130289^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210120011121 - 2⁵ = 10210120011089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10210120011127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865698700 + ... + 865710493.

It is an arithmetic number, because the mean of its divisors is an integer number (2552962856553).

Almost surely, 2^{10210120011121} is an apocalyptic number.

It is an amenable number.

10210120011121 is a deficient number, since it is larger than the sum of its proper divisors (1731415091).

10210120011121 is an equidigital number, since it uses as much as digits as its factorization.

10210120011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731415090.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10210120011121 its reverse (12111002101201), we get a palindrome (22321122112322).

The spelling of 10210120011121 in words is "ten trillion, two hundred ten billion, one hundred twenty million, eleven thousand, one hundred twenty-one".