120201020111 has 4 divisors (see below), whose sum is σ = 122758488672. Its totient is φ = 117643551552.

The previous prime is 120201020099. The next prime is 120201020227. The reversal of 120201020111 is 111020102021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120201020111 - 2⁶ = 120201020047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120201020092 and 120201020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201020911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278734210 + ... + 1278734303.

It is an arithmetic number, because the mean of its divisors is an integer number (30689622168).

Almost surely, 2^120201020111 is an apocalyptic number.

120201020111 is a deficient number, since it is larger than the sum of its proper divisors (2557468561).

120201020111 is an equidigital number, since it uses as much as digits as its factorization.

120201020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557468560.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120201020111 its reverse (111020102021), we get a palindrome (231221122132).

The spelling of 120201020111 in words is "one hundred twenty billion, two hundred one million, twenty thousand, one hundred eleven".