120212122111 has 4 divisors (see below), whose sum is σ = 120272140152. Its totient is φ = 120152104072.

The previous prime is 120212122109. The next prime is 120212122123. The reversal of 120212122111 is 111221212021.

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 120212122111 - 2¹ = 120212122109 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 (120212123111) 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, 30006016 + ... + 30010021.

It is an arithmetic number, because the mean of its divisors is an integer number (30068035038).

Almost surely, 2^120212122111 is an apocalyptic number.

120212122111 is a deficient number, since it is larger than the sum of its proper divisors (60018041).

120212122111 is an equidigital number, since it uses as much as digits as its factorization.

120212122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60018040.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120212122111 its reverse (111221212021), we get a palindrome (231433334132).

The spelling of 120212122111 in words is "one hundred twenty billion, two hundred twelve million, one hundred twenty-two thousand, one hundred eleven".