1121210211 has 8 divisors (see below), whose sum is σ = 1630851264. Its totient is φ = 679521320.

The previous prime is 1121210171. The next prime is 1121210219. The reversal of 1121210211 is 1120121211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121210211 - 2⁹ = 1121209699 is a prime.

It is a super-2 number, since 2×1121210211² = 2514224674501329042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121210219) 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, 16988001 + ... + 16988066.

It is an arithmetic number, because the mean of its divisors is an integer number (203856408).

Almost surely, 2^1121210211 is an apocalyptic number.

1121210211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121210211 is a deficient number, since it is larger than the sum of its proper divisors (509641053).

1121210211 is a wasteful number, since it uses less digits than its factorization.

1121210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33976081.

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

The square root of 1121210211 is about 33484.4771647998. The cubic root of 1121210211 is about 1038.8727341470.

Adding to 1121210211 its reverse (1120121211), we get a palindrome (2241331422).

The spelling of 1121210211 in words is "one billion, one hundred twenty-one million, two hundred ten thousand, two hundred eleven".