120220221111 has 4 divisors (see below), whose sum is σ = 160293628152. Its totient is φ = 80146814072.

The previous prime is 120220221109. The next prime is 120220221133. The reversal of 120220221111 is 111122022021.

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 120220221111 - 2¹ = 120220221109 is a prime.

It is a super-4 number, since 4×120220221111⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120220221101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20036703516 + ... + 20036703521.

It is an arithmetic number, because the mean of its divisors is an integer number (40073407038).

Almost surely, 2^120220221111 is an apocalyptic number.

120220221111 is a deficient number, since it is larger than the sum of its proper divisors (40073407041).

120220221111 is an equidigital number, since it uses as much as digits as its factorization.

120220221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40073407040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120220221111 its reverse (111122022021), we get a palindrome (231342243132).

The spelling of 120220221111 in words is "one hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, one hundred eleven".