1320220242 has 32 divisors (see below), whose sum is σ = 3200535360. Its totient is φ = 400066560.

The previous prime is 1320220241. The next prime is 1320220243. The reversal of 1320220242 is 2420220231.

1320220242 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1320220241) and next prime (1320220243).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1320220241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110703 + ... + 1111890.

It is an arithmetic number, because the mean of its divisors is an integer number (100016730).

Almost surely, 2^1320220242 is an apocalyptic number.

1320220242 is an abundant number, since it is smaller than the sum of its proper divisors (1880315118).

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

1320220242 is a wasteful number, since it uses less digits than its factorization.

1320220242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222615 (or 2222609 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1320220242 is about 36334.8351035201. The cubic root of 1320220242 is about 1097.0223164253.

Adding to 1320220242 its reverse (2420220231), we get a palindrome (3740440473).

The spelling of 1320220242 in words is "one billion, three hundred twenty million, two hundred twenty thousand, two hundred forty-two".