320142222020 has 24 divisors (see below), whose sum is σ = 674977157568. Its totient is φ = 127546700000.

The previous prime is 320142222013. The next prime is 320142222031. The reversal of 320142222020 is 20222241023.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 320142221983 and 320142222001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31881656 + ... + 31891695.

It is an arithmetic number, because the mean of its divisors is an integer number (28124048232).

Almost surely, 2^320142222020 is an apocalyptic number.

It is an amenable number.

320142222020 is an abundant number, since it is smaller than the sum of its proper divisors (354834935548).

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

320142222020 is a wasteful number, since it uses less digits than its factorization.

320142222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63773611 (or 63773609 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 320142222020 its reverse (20222241023), we get a palindrome (340364463043).

The spelling of 320142222020 in words is "three hundred twenty billion, one hundred forty-two million, two hundred twenty-two thousand, twenty".