210111120201121 has 8 divisors (see below), whose sum is σ = 213731041915944. Its totient is φ = 206496859038720.

The previous prime is 210111120201109. The next prime is 210111120201137. The reversal of 210111120201121 is 121102021111012.

It can be written as a sum of positive squares in 4 ways, for example, as 15312852490896 + 194798267710225 = 3913164^2 + 13957015^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 210111120201121 - 2⁹ = 210111120200609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210111120201095 and 210111120201104.

It is not an unprimeable number, because it can be changed into a prime (210111120204121) 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, 1415063230 + ... + 1415211703.

It is an arithmetic number, because the mean of its divisors is an integer number (26716380239493).

Almost surely, 2^{210111120201121} is an apocalyptic number.

It is an amenable number.

210111120201121 is a deficient number, since it is larger than the sum of its proper divisors (3619921714823).

210111120201121 is a wasteful number, since it uses less digits than its factorization.

210111120201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830276211.

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

Adding to 210111120201121 its reverse (121102021111012), we get a palindrome (331213141312133).

The spelling of 210111120201121 in words is "two hundred ten trillion, one hundred eleven billion, one hundred twenty million, two hundred one thousand, one hundred twenty-one".