210120012112111 has 8 divisors (see below), whose sum is σ = 210471528960000. Its totient is φ = 209768497706040.

The previous prime is 210120012112063. The next prime is 210120012112187. The reversal of 210120012112111 is 111211210021012.

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 210120012112111 - 2¹⁹ = 210120011587823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120012113111) 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, 277264690 + ... + 278021488.

It is an arithmetic number, because the mean of its divisors is an integer number (26308941120000).

Almost surely, 2^{210120012112111} is an apocalyptic number.

210120012112111 is a deficient number, since it is larger than the sum of its proper divisors (351516847889).

210120012112111 is an equidigital number, since it uses as much as digits as its factorization.

210120012112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220909.

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

Adding to 210120012112111 its reverse (111211210021012), we get a palindrome (321331222133123).

The spelling of 210120012112111 in words is "two hundred ten trillion, one hundred twenty billion, twelve million, one hundred twelve thousand, one hundred eleven".