1320221022 has 32 divisors (see below), whose sum is σ = 2783676672. Its totient is φ = 416596224.

The previous prime is 1320221011. The next prime is 1320221039. The reversal of 1320221022 is 2201220231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1320220992 and 1320221010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35928 + ... + 62699.

It is an arithmetic number, because the mean of its divisors is an integer number (86989896).

Almost surely, 2^1320221022 is an apocalyptic number.

1320221022 is an abundant number, since it is smaller than the sum of its proper divisors (1463455650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320221022 is a wasteful number, since it uses less digits than its factorization.

1320221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98752.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1320221022 is about 36334.8458370199. The cubic root of 1320221022 is about 1097.0225324693.

Adding to 1320221022 its reverse (2201220231), we get a palindrome (3521441253).

The spelling of 1320221022 in words is "one billion, three hundred twenty million, two hundred twenty-one thousand, twenty-two".