120221201111 has 32 divisors (see below), whose sum is σ = 136611558720. Its totient is φ = 104794905600.

The previous prime is 120221201101. The next prime is 120221201123. The reversal of 120221201111 is 111102122021.

It is not a de Polignac number, because 120221201111 - 2²² = 120217006807 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 (120221201101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82739261 + ... + 82740713.

It is an arithmetic number, because the mean of its divisors is an integer number (4269111210).

Almost surely, 2^120221201111 is an apocalyptic number.

120221201111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120221201111 is a deficient number, since it is larger than the sum of its proper divisors (16390357609).

120221201111 is a wasteful number, since it uses less digits than its factorization.

120221201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120221201111 its reverse (111102122021), we get a palindrome (231323323132).

The spelling of 120221201111 in words is "one hundred twenty billion, two hundred twenty-one million, two hundred one thousand, one hundred eleven".