1120220001 has 6 divisors (see below), whose sum is σ = 1618095570. Its totient is φ = 746813328.

The previous prime is 1120219973. The next prime is 1120220009. The reversal of 1120220001 is 1000220211.

It can be written as a sum of positive squares in only one way, i.e., 913550625 + 206669376 = 30225^2 + 14376^2 .

It is not a de Polignac number, because 1120220001 - 2¹³ = 1120211809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 124468889 = 1120220001 / (1 + 1 + 2 + 0 + 2 + 2 + 0 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (1120220009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62234436 + ... + 62234453.

It is an arithmetic number, because the mean of its divisors is an integer number (269682595).

Almost surely, 2^1120220001 is an apocalyptic number.

It is an amenable number.

1120220001 is a deficient number, since it is larger than the sum of its proper divisors (497875569).

1120220001 is a wasteful number, since it uses less digits than its factorization.

1120220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124468895 (or 124468892 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1120220001 is about 33469.6877935842. The cubic root of 1120220001 is about 1038.5668131741.

Adding to 1120220001 its reverse (1000220211), we get a palindrome (2120440212).

The spelling of 1120220001 in words is "one billion, one hundred twenty million, two hundred twenty thousand, one".