1220322031 has 8 divisors (see below), whose sum is σ = 1223899200. Its totient is φ = 1216751520.

The previous prime is 1220322007. The next prime is 1220322043. The reversal of 1220322031 is 1302230221.

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 1220322031 - 2¹⁵ = 1220289263 is a prime.

It is a super-3 number, since 3×1220322031³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220321996 and 1220322014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220322331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882961 + ... + 884341.

It is an arithmetic number, because the mean of its divisors is an integer number (152987400).

Almost surely, 2^1220322031 is an apocalyptic number.

1220322031 is a deficient number, since it is larger than the sum of its proper divisors (3577169).

1220322031 is a wasteful number, since it uses less digits than its factorization.

1220322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1220322031 is about 34933.1079493365. The cubic root of 1220322031 is about 1068.6237381887.

Adding to 1220322031 its reverse (1302230221), we get a palindrome (2522552252).

The spelling of 1220322031 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, thirty-one".