210111110001121 has 32 divisors (see below), whose sum is σ = 249093542320128. Its totient is φ = 173485935665280.

The previous prime is 210111110001059. The next prime is 210111110001161. The reversal of 210111110001121 is 121100011111012.

It is not a de Polignac number, because 210111110001121 - 2²¹ = 210111107903969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210111110001161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344033790 + ... + 344643976.

It is an arithmetic number, because the mean of its divisors is an integer number (7784173197504).

Almost surely, 2^{210111110001121} is an apocalyptic number.

It is an amenable number.

210111110001121 is a deficient number, since it is larger than the sum of its proper divisors (38982432319007).

210111110001121 is a wasteful number, since it uses less digits than its factorization.

210111110001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625981.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 210111110001121 its reverse (121100011111012), we get a palindrome (331211121112133).

The spelling of 210111110001121 in words is "two hundred ten trillion, one hundred eleven billion, one hundred ten million, one thousand, one hundred twenty-one".