120221111011 has 2 divisors, whose sum is σ = 120221111012. Its totient is φ = 120221111010.

The previous prime is 120221110957. The next prime is 120221111069. The reversal of 120221111011 is 110111122021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120221111011 - 2¹⁷ = 120220979939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120221110982 and 120221111000.

It is not a weakly prime, because it can be changed into another prime (120221111911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110555505 + 60110555506.

It is an arithmetic number, because the mean of its divisors is an integer number (60110555506).

Almost surely, 2^120221111011 is an apocalyptic number.

120221111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221111011 is an equidigital number, since it uses as much as digits as its factorization.

120221111011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120221111011 its reverse (110111122021), we get a palindrome (230332233032).

The spelling of 120221111011 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred eleven thousand, eleven".