1320220422 has 24 divisors (see below), whose sum is σ = 2888253264. Its totient is φ = 435800304.

The previous prime is 1320220409. The next prime is 1320220427. The reversal of 1320220422 is 2240220231.

1320220422 is a `hidden beast` number, since 1 + 3 + 20 + 220 + 422 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1320220395 and 1320220404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320220427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354193 + ... + 357900.

It is an arithmetic number, because the mean of its divisors is an integer number (120343886).

Almost surely, 2^1320220422 is an apocalyptic number.

1320220422 is an abundant number, since it is smaller than the sum of its proper divisors (1568032842).

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

1320220422 is a wasteful number, since it uses less digits than its factorization.

1320220422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712204 (or 712201 counting only the distinct ones).

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

The square root of 1320220422 is about 36334.8375804819. The cubic root of 1320220422 is about 1097.0223662816.

Adding to 1320220422 its reverse (2240220231), we get a palindrome (3560440653).

The spelling of 1320220422 in words is "one billion, three hundred twenty million, two hundred twenty thousand, four hundred twenty-two".