120020111211 has 64 divisors (see below), whose sum is σ = 219858186240. Its totient is φ = 56213619840.

The previous prime is 120020111191. The next prime is 120020111219. The reversal of 120020111211 is 112111020021.

It is not a de Polignac number, because 120020111211 - 2⁹ = 120020110699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120020111219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 335601 + ... + 593858.

It is an arithmetic number, because the mean of its divisors is an integer number (3435284160).

Almost surely, 2^120020111211 is an apocalyptic number.

120020111211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120020111211 is a deficient number, since it is larger than the sum of its proper divisors (99838075029).

120020111211 is a wasteful number, since it uses less digits than its factorization.

120020111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929536.

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

Adding to 120020111211 its reverse (112111020021), we get a palindrome (232131131232).

The spelling of 120020111211 in words is "one hundred twenty billion, twenty million, one hundred eleven thousand, two hundred eleven".