210120000112111 has 4 divisors (see below), whose sum is σ = 210122987939632. Its totient is φ = 210117012284592.

The previous prime is 210120000112097. The next prime is 210120000112129. The reversal of 210120000112111 is 111211000021012.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210120000112111 is a prime.

It is a super-2 number, since 2×210120000112111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210120000112091 and 210120000112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120000112151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493808270 + ... + 1493948923.

It is an arithmetic number, because the mean of its divisors is an integer number (52530746984908).

Almost surely, 2^{210120000112111} is an apocalyptic number.

210120000112111 is a deficient number, since it is larger than the sum of its proper divisors (2987827521).

210120000112111 is an equidigital number, since it uses as much as digits as its factorization.

210120000112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987827520.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 210120000112111 its reverse (111211000021012), we get a palindrome (321331000133123).

The spelling of 210120000112111 in words is "two hundred ten trillion, one hundred twenty billion, one hundred twelve thousand, one hundred eleven".