1320322421022 has 128 divisors (see below), whose sum is σ = 3212321587200. Its totient is φ = 356562316800.

The previous prime is 1320322420987. The next prime is 1320322421051. The reversal of 1320322421022 is 2201242230231.

It is a junction number, because it is equal to n+sod(n) for n = 1320322420983 and 1320322421001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44987629 + ... + 45016967.

It is an arithmetic number, because the mean of its divisors is an integer number (25096262400).

Almost surely, 2^{1320322421022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320322421022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606160793600).

1320322421022 is an abundant number, since it is smaller than the sum of its proper divisors (1891999166178).

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

1320322421022 is a wasteful number, since it uses less digits than its factorization.

1320322421022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31502.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1320322421022 its reverse (2201242230231), we get a palindrome (3521564651253).

The spelling of 1320322421022 in words is "one trillion, three hundred twenty billion, three hundred twenty-two million, four hundred twenty-one thousand, twenty-two".