11021213 has 8 divisors (see below), whose sum is σ = 13002240. Its totient is φ = 9141840.

The previous prime is 11021183. The next prime is 11021249. The reversal of 11021213 is 31212011.

11021213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11021213 - 2¹² = 11017117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021194 and 11021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021293) 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, 25178 + ... + 25611.

It is an arithmetic number, because the mean of its divisors is an integer number (1625280).

Almost surely, 2^11021213 is an apocalyptic number.

It is an amenable number.

11021213 is a deficient number, since it is larger than the sum of its proper divisors (1981027).

11021213 is an equidigital number, since it uses as much as digits as its factorization.

11021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50827.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11021213 is about 3319.8212301267. The cubic root of 11021213 is about 222.5408787408.

Adding to 11021213 its reverse (31212011), we get a palindrome (42233224).

The spelling of 11021213 in words is "eleven million, twenty-one thousand, two hundred thirteen".