120221100101 has 6 divisors (see below), whose sum is σ = 121938208806. Its totient is φ = 118527840200.

The previous prime is 120221100047. The next prime is 120221100107. The reversal of 120221100101 is 101001122021.

It can be written as a sum of positive squares in only one way, i.e., 108110097601 + 12111002500 = 328801^2 + 110050^2 .

It is not a de Polignac number, because 120221100101 - 2¹⁰ = 120221099077 is a prime.

It is a super-2 number, since 2×120221100101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221100107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11919290 + ... + 11929371.

It is an arithmetic number, because the mean of its divisors is an integer number (20323034801).

Almost surely, 2^120221100101 is an apocalyptic number.

It is an amenable number.

120221100101 is a deficient number, since it is larger than the sum of its proper divisors (1717108705).

120221100101 is an frugal number, since it uses more digits than its factorization.

120221100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23848803 (or 23848732 counting only the distinct ones).

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

Adding to 120221100101 its reverse (101001122021), we get a palindrome (221222222122).

The spelling of 120221100101 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred thousand, one hundred one".