210110101112121 has 8 divisors (see below), whose sum is σ = 320167773123264. Its totient is φ = 120062914921200.

The previous prime is 210110101112057. The next prime is 210110101112147. The reversal of 210110101112121 is 121211101011012.

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

It is not a de Polignac number, because 210110101112121 - 2⁶ = 210110101112057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210110101112121.

It is not an unprimeable number, because it can be changed into a prime (210110101112161) 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 7 ways as a sum of consecutive naturals, for example, 5002621455030 + ... + 5002621455071.

It is an arithmetic number, because the mean of its divisors is an integer number (40020971640408).

Almost surely, 2^{210110101112121} is an apocalyptic number.

210110101112121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210110101112121 is a deficient number, since it is larger than the sum of its proper divisors (110057672011143).

210110101112121 is a wasteful number, since it uses less digits than its factorization.

210110101112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005242910111.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 210110101112121 its reverse (121211101011012), we get a palindrome (331321202123133).

The spelling of 210110101112121 in words is "two hundred ten trillion, one hundred ten billion, one hundred one million, one hundred twelve thousand, one hundred twenty-one".