1121012211 has 16 divisors (see below), whose sum is σ = 1632021120. Its totient is φ = 678793920.

The previous prime is 1121012161. The next prime is 1121012237. The reversal of 1121012211 is 1122101211.

It is not a de Polignac number, because 1121012211 - 2¹⁰ = 1121011187 is a prime.

It is a super-2 number, since 2×1121012211² = 2513336754422217042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121012281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23775 + ... + 52983.

It is an arithmetic number, because the mean of its divisors is an integer number (102001320).

Almost surely, 2^1121012211 is an apocalyptic number.

1121012211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121012211 is a deficient number, since it is larger than the sum of its proper divisors (511008909).

1121012211 is a wasteful number, since it uses less digits than its factorization.

1121012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30386.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1121012211 is about 33481.5204403862. The cubic root of 1121012211 is about 1038.8115773396.

Adding to 1121012211 its reverse (1122101211), we get a palindrome (2243113422).

The spelling of 1121012211 in words is "one billion, one hundred twenty-one million, twelve thousand, two hundred eleven".