1122342021 has 32 divisors (see below), whose sum is σ = 1723075200.
Its totient is φ = 721163520.
The previous prime is 1122342007. The next prime is 1122342029. The reversal of 1122342021 is 1202432211.
It is a happy number.
1122342021 is a `hidden beast` number, since 1 + 1 + 223 + 420 + 21 = 666.
It is not a de Polignac number, because 1122342021 - 219 = 1121817733 is a prime.
It is a super-2 number, since 2×11223420212 = 2519303224204728882, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1122341985 and 1122342003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1122342029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 689010 + ... + 690636.
It is an arithmetic number, because the mean of its divisors is an integer number (53846100).
Almost surely, 21122342021 is an apocalyptic number.
It is an amenable number.
1122342021 is a deficient number, since it is larger than the sum of its proper divisors (600733179).
1122342021 is a wasteful number, since it uses less digits than its factorization.
1122342021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2546 (or 2540 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 1122342021 is about 33501.3734196077.
The cubic root of 1122342021 is about 1039.2221812945.
Note that the first 3 decimals are identical.
Adding to 1122342021 its reverse (1202432211), we get a palindrome (2324774232).
The spelling of 1122342021 in words is "one billion, one hundred twenty-two million, three hundred forty-two thousand, twenty-one".