120111312211 has 8 divisors (see below), whose sum is σ = 131163830784. Its totient is φ = 109081011720.

The previous prime is 120111312137. The next prime is 120111312313. The reversal of 120111312211 is 112213111021.

It is a happy number.

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 120111312211 - 2¹⁷ = 120111181139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120111312511) 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, 5543211 + ... + 5564836.

It is an arithmetic number, because the mean of its divisors is an integer number (16395478848).

Almost surely, 2^120111312211 is an apocalyptic number.

120111312211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120111312211 is a deficient number, since it is larger than the sum of its proper divisors (11052518573).

120111312211 is a wasteful number, since it uses less digits than its factorization.

120111312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11109041.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 120111312211 its reverse (112213111021), we get a palindrome (232324423232).

The spelling of 120111312211 in words is "one hundred twenty billion, one hundred eleven million, three hundred twelve thousand, two hundred eleven".