11022121 has 8 divisors (see below), whose sum is σ = 12049344.
Its totient is φ = 9999120.
The previous prime is 11022119. The next prime is 11022131. The reversal of 11022121 is 12122011.
Adding to 11022121 its reverse (12122011), we get a palindrome (23144132).
It can be divided in two parts, 1102 and 2121, that added together give a palindrome (3223).
11022121 = 9962 + 9972 + ... + 10062.
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 11022121 - 21 = 11022119 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 11022098 and 11022107.
It is not an unprimeable number, because it can be changed into a prime (11022101) 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 7 ways as a sum of consecutive naturals, for example, 7380 + ... + 8746.
It is an arithmetic number, because the mean of its divisors is an integer number (1506168).
Almost surely, 211022121 is an apocalyptic number.
11022121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
11022121 is a deficient number, since it is larger than the sum of its proper divisors (1027223).
11022121 is a wasteful number, since it uses less digits than its factorization.
11022121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2111.
The product of its (nonzero) digits is 8, while the sum is 10.
The square root of 11022121 is about 3319.9579816618.
The cubic root of 11022121 is about 222.5469900333.
The spelling of 11022121 in words is "eleven million, twenty-two thousand, one hundred twenty-one".