1121010211 has 4 divisors (see below), whose sum is σ = 1132109424. Its totient is φ = 1109911000.

The previous prime is 1121010197. The next prime is 1121010223. The reversal of 1121010211 is 1120101211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1120101211 = 101 ⋅11090111.

It is a cyclic number.

It is not a de Polignac number, because 1121010211 - 2⁷ = 1121010083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121013211) 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 3 ways as a sum of consecutive naturals, for example, 5549455 + ... + 5549656.

It is an arithmetic number, because the mean of its divisors is an integer number (283027356).

Almost surely, 2^1121010211 is an apocalyptic number.

1121010211 is a deficient number, since it is larger than the sum of its proper divisors (11099213).

1121010211 is a wasteful number, since it uses less digits than its factorization.

1121010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099212.

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

The square root of 1121010211 is about 33481.4905731510. The cubic root of 1121010211 is about 1038.8109595573.

Adding to 1121010211 its reverse (1120101211), we get a palindrome (2241111422).

The spelling of 1121010211 in words is "one billion, one hundred twenty-one million, ten thousand, two hundred eleven".