1121211 has 36 divisors (see below), whose sum is σ = 2048592. Its totient is φ = 575424.

The previous prime is 1121203. The next prime is 1121221.

It is a happy number.

1121211 is nontrivially palindromic in base 10.

1121211 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 1121211 - 2³ = 1121203 is a prime.

It is a super-2 number, since 2×1121211² = 2514228213042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

1121211 is a lucky number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1121193 and 1121202.

It is not an unprimeable number, because it can be changed into a prime (1121221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30285 + ... + 30321.

2^1121211 is an apocalyptic number.

1121211 is a deficient number, since it is larger than the sum of its proper divisors (927381).

1121211 is a wasteful number, since it uses less digits than its factorization.

1121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 60 counting only the distinct ones).

The product of its digits is 4, while the sum is 9.

The square root of 1121211 is about 1058.8725135728. The cubic root of 1121211 is about 103.8872977833.

The spelling of 1121211 in words is "one million, one hundred twenty-one thousand, two hundred eleven".