1220331022 has 8 divisors (see below), whose sum is σ = 1848268656. Its totient is φ = 604241472.

The previous prime is 1220331017. The next prime is 1220331029. The reversal of 1220331022 is 2201330221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1220330987 and 1220331005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220331029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2961763 + ... + 2962174.

It is an arithmetic number, because the mean of its divisors is an integer number (231033582).

Almost surely, 2^1220331022 is an apocalyptic number.

1220331022 is a deficient number, since it is larger than the sum of its proper divisors (627937634).

1220331022 is a wasteful number, since it uses less digits than its factorization.

1220331022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924042.

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

The square root of 1220331022 is about 34933.2366379069. The cubic root of 1220331022 is about 1068.6263626250.

Adding to 1220331022 its reverse (2201330221), we get a palindrome (3421661243).

The spelling of 1220331022 in words is "one billion, two hundred twenty million, three hundred thirty-one thousand, twenty-two".