9001112211 has 144 divisors (see below), whose sum is σ = 16804646976. Its totient is φ = 4541681664.

The previous prime is 9001112209. The next prime is 9001112221. The reversal of 9001112211 is 1122111009.

It is a happy number.

It is not a de Polignac number, because 9001112211 - 2¹ = 9001112209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9001112221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 28757391 + ... + 28757703.

Almost surely, 2^9001112211 is an apocalyptic number.

9001112211 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

9001112211 is a deficient number, since it is larger than the sum of its proper divisors (7803534765).

9001112211 is a wasteful number, since it uses less digits than its factorization.

9001112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 9001112211 is about 94874.1914906262. The cubic root of 9001112211 is about 2080.1695044155.

It can be divided in two parts, 900 and 1112211, that added together give a palindrome (1113111).

The spelling of 9001112211 in words is "nine billion, one million, one hundred twelve thousand, two hundred eleven".