120001122111 has 16 divisors (see below), whose sum is σ = 172317014240. Its totient is φ = 73843539840.

The previous prime is 120001122107. The next prime is 120001122119. The reversal of 120001122111 is 111221100021.

It is not a de Polignac number, because 120001122111 - 2² = 120001122107 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 (120001122119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039881 + ... + 1149501.

It is an arithmetic number, because the mean of its divisors is an integer number (10769813390).

Almost surely, 2^120001122111 is an apocalyptic number.

120001122111 is a deficient number, since it is larger than the sum of its proper divisors (52315892129).

120001122111 is a wasteful number, since it uses less digits than its factorization.

120001122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137706.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120001122111 its reverse (111221100021), we get a palindrome (231222222132).

The spelling of 120001122111 in words is "one hundred twenty billion, one million, one hundred twenty-two thousand, one hundred eleven".