210120200001011 has 4 divisors (see below), whose sum is σ = 214590842554272. Its totient is φ = 205649557447752.

The previous prime is 210120200000989. The next prime is 210120200001031. The reversal of 210120200001011 is 110100002021012.

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

It is a cyclic number.

It is not a de Polignac number, because 210120200001011 - 2³⁰ = 210119126259187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210120200000983 and 210120200001001.

It is not an unprimeable number, because it can be changed into a prime (210120200001031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235321276560 + ... + 2235321276653.

It is an arithmetic number, because the mean of its divisors is an integer number (53647710638568).

Almost surely, 2^{210120200001011} is an apocalyptic number.

210120200001011 is a deficient number, since it is larger than the sum of its proper divisors (4470642553261).

210120200001011 is an equidigital number, since it uses as much as digits as its factorization.

210120200001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470642553260.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210120200001011 its reverse (110100002021012), we get a palindrome (320220202022023).

The spelling of 210120200001011 in words is "two hundred ten trillion, one hundred twenty billion, two hundred million, one thousand, eleven".