120011101221 has 32 divisors (see below), whose sum is σ = 175315660416. Its totient is φ = 72420192000.

The previous prime is 120011101201. The next prime is 120011101229. The reversal of 120011101221 is 122101110021.

It is not a de Polignac number, because 120011101221 - 2¹⁰ = 120011100197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120011101197 and 120011101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011101229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15910711 + ... + 15918251.

It is an arithmetic number, because the mean of its divisors is an integer number (5478614388).

Almost surely, 2^120011101221 is an apocalyptic number.

120011101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120011101221 is a deficient number, since it is larger than the sum of its proper divisors (55304559195).

120011101221 is a wasteful number, since it uses less digits than its factorization.

120011101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9573.

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

Adding to 120011101221 its reverse (122101110021), we get a palindrome (242112211242).

The spelling of 120011101221 in words is "one hundred twenty billion, eleven million, one hundred one thousand, two hundred twenty-one".