1120120101 has 6 divisors (see below), whose sum is σ = 1617951270. Its totient is φ = 746746728.

The previous prime is 1120120097. The next prime is 1120120147. The reversal of 1120120101 is 1010210211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 563112900 + 557007201 = 23730^2 + 23601^2 .

It is not a de Polignac number, because 1120120101 - 2² = 1120120097 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: 124457789 = 1120120101 / (1 + 1 + 2 + 0 + 1 + 2 + 0 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120120151) 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, 62228886 + ... + 62228903.

It is an arithmetic number, because the mean of its divisors is an integer number (269658545).

Almost surely, 2^1120120101 is an apocalyptic number.

It is an amenable number.

1120120101 is a deficient number, since it is larger than the sum of its proper divisors (497831169).

1120120101 is a wasteful number, since it uses less digits than its factorization.

1120120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124457795 (or 124457792 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1120120101 is about 33468.1953651523. The cubic root of 1120120101 is about 1038.5359395038.

Adding to 1120120101 its reverse (1010210211), we get a palindrome (2130330312).

The spelling of 1120120101 in words is "one billion, one hundred twenty million, one hundred twenty thousand, one hundred one".