1122023221 has 8 divisors (see below), whose sum is σ = 1224326304. Its totient is φ = 1019770320.

The previous prime is 1122023183. The next prime is 1122023233. The reversal of 1122023221 is 1223202211.

It is a happy number.

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 1122023221 - 2⁹ = 1122022709 is a prime.

It is a super-2 number, since 2×1122023221² = 2517872216926429682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122023195 and 1122023204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122023251) 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, 46191 + ... + 66163.

It is an arithmetic number, because the mean of its divisors is an integer number (153040788).

Almost surely, 2^1122023221 is an apocalyptic number.

1122023221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122023221 is a deficient number, since it is larger than the sum of its proper divisors (102303083).

1122023221 is a wasteful number, since it uses less digits than its factorization.

1122023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25091.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1122023221 is about 33496.6150677945. The cubic root of 1122023221 is about 1039.1237753425.

Adding to 1122023221 its reverse (1223202211), we get a palindrome (2345225432).

The spelling of 1122023221 in words is "one billion, one hundred twenty-two million, twenty-three thousand, two hundred twenty-one".