1011120201 has 96 divisors (see below), whose sum is σ = 1879824128. Its totient is φ = 509483520.

The previous prime is 1011120197. The next prime is 1011120217. The reversal of 1011120201 is 1020211101.

It is a happy number.

It is not a de Polignac number, because 1011120201 - 2² = 1011120197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1011120221) 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 95 ways as a sum of consecutive naturals, for example, 1848210 + ... + 1848756.

Almost surely, 2^1011120201 is an apocalyptic number.

It is an amenable number.

1011120201 is a deficient number, since it is larger than the sum of its proper divisors (868703927).

1011120201 is a wasteful number, since it uses less digits than its factorization.

1011120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 668 counting only the distinct ones).

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

The square root of 1011120201 is about 31798.1163121340. The cubic root of 1011120201 is about 1003.6930780514.

Adding to 1011120201 its reverse (1020211101), we get a palindrome (2031331302).

The spelling of 1011120201 in words is "one billion, eleven million, one hundred twenty thousand, two hundred one".