1022120445 has 8 divisors (see below), whose sum is σ = 1635392736. Its totient is φ = 545130896.

The previous prime is 1022120431. The next prime is 1022120467. The reversal of 1022120445 is 5440212201.

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 1022120445 - 2⁵ = 1022120413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34070667 + ... + 34070696.

It is an arithmetic number, because the mean of its divisors is an integer number (204424092).

Almost surely, 2^1022120445 is an apocalyptic number.

1022120445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022120445 is a deficient number, since it is larger than the sum of its proper divisors (613272291).

1022120445 is an equidigital number, since it uses as much as digits as its factorization.

1022120445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68141371.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1022120445 is about 31970.6184644589. The cubic root of 1022120445 is about 1007.3197718775.

Adding to 1022120445 its reverse (5440212201), we get a palindrome (6462332646).

The spelling of 1022120445 in words is "one billion, twenty-two million, one hundred twenty thousand, four hundred forty-five".