1012211 has 4 divisors (see below), whose sum is σ = 1014624.
Its totient is φ = 1009800.
The previous prime is 1012201. The next prime is 1012213. The reversal of 1012211 is 1122101.
1012211 is nontrivially palindromic in base 8.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1122101 = 23 ⋅48787.
It is a cyclic number.
It is not a de Polignac number, because 1012211 - 26 = 1012147 is a prime.
It is a super-2 number, since 2×10122112 = 2049142217042, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1012213) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395 + ... + 1476.
It is an arithmetic number, because the mean of its divisors is an integer number (253656).
21012211 is an apocalyptic number.
1012211 is a deficient number, since it is larger than the sum of its proper divisors (2413).
1012211 is an equidigital number, since it uses as much as digits as its factorization.
1012211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2412.
The product of its (nonzero) digits is 4, while the sum is 8.
The square root of 1012211 is about 1006.0869743715.
The cubic root of 1012211 is about 100.4053877206.
Adding to 1012211 its reverse (1122101), we get a palindrome (2134312).
It can be divided in two parts, 10 and 12211, that added together give a palindrome (12221).
The spelling of 1012211 in words is "one million, twelve thousand, two hundred eleven".