120111220101 has 16 divisors (see below), whose sum is σ = 162317910528. Its totient is φ = 78995064000.

The previous prime is 120111219961. The next prime is 120111220109. The reversal of 120111220101 is 101022111021.

It is not a de Polignac number, because 120111220101 - 2¹¹ = 120111218053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111220109) 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 15 ways as a sum of consecutive naturals, for example, 631605 + ... + 799466.

It is an arithmetic number, because the mean of its divisors is an integer number (10144869408).

Almost surely, 2^120111220101 is an apocalyptic number.

It is an amenable number.

120111220101 is a deficient number, since it is larger than the sum of its proper divisors (42206690427).

120111220101 is a wasteful number, since it uses less digits than its factorization.

120111220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431452.

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

Adding to 120111220101 its reverse (101022111021), we get a palindrome (221133331122).

The spelling of 120111220101 in words is "one hundred twenty billion, one hundred eleven million, two hundred twenty thousand, one hundred one".