120212310111 has 4 divisors (see below), whose sum is σ = 160283080152. Its totient is φ = 80141540072.

The previous prime is 120212310077. The next prime is 120212310131. The reversal of 120212310111 is 111013212021.

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 120212310111 - 2¹⁴ = 120212293727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212310131) 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 3 ways as a sum of consecutive naturals, for example, 20035385016 + ... + 20035385021.

It is an arithmetic number, because the mean of its divisors is an integer number (40070770038).

Almost surely, 2^120212310111 is an apocalyptic number.

120212310111 is a deficient number, since it is larger than the sum of its proper divisors (40070770041).

120212310111 is an equidigital number, since it uses as much as digits as its factorization.

120212310111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40070770040.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 120212310111 its reverse (111013212021), we get a palindrome (231225522132).

The spelling of 120212310111 in words is "one hundred twenty billion, two hundred twelve million, three hundred ten thousand, one hundred eleven".