1121201011 has 8 divisors (see below), whose sum is σ = 1289973600. Its totient is φ = 954578688.

The previous prime is 1121200991. The next prime is 1121201023. The reversal of 1121201011 is 1101021211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121201011 - 2¹⁹ = 1120676723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121201311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536446 + ... + 538531.

It is an arithmetic number, because the mean of its divisors is an integer number (161246700).

Almost surely, 2^1121201011 is an apocalyptic number.

1121201011 is a deficient number, since it is larger than the sum of its proper divisors (168772589).

1121201011 is a wasteful number, since it uses less digits than its factorization.

1121201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075133.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1121201011 is about 33484.3397874290. The cubic root of 1121201011 is about 1038.8698926771.

Adding to 1121201011 its reverse (1101021211), we get a palindrome (2222222222).

The spelling of 1121201011 in words is "one billion, one hundred twenty-one million, two hundred one thousand, eleven".