1220311022 has 32 divisors (see below), whose sum is σ = 2119998720. Its totient is φ = 516015360.

The previous prime is 1220311019. The next prime is 1220311049. The reversal of 1220311022 is 2201130221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1220310988 and 1220311006.

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 15 ways as a sum of consecutive naturals, for example, 513497 + ... + 515867.

It is an arithmetic number, because the mean of its divisors is an integer number (66249960).

Almost surely, 2^1220311022 is an apocalyptic number.

1220311022 is a deficient number, since it is larger than the sum of its proper divisors (899687698).

1220311022 is a wasteful number, since it uses less digits than its factorization.

1220311022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1220311022 is about 34932.9503763996. The cubic root of 1220311022 is about 1068.6205246888.

Adding to 1220311022 its reverse (2201130221), we get a palindrome (3421441243).

The spelling of 1220311022 in words is "one billion, two hundred twenty million, three hundred eleven thousand, twenty-two".