1320022420220 has 192 divisors, whose sum is σ = 3503413057536. Its totient is φ = 407069245440.

The previous prime is 1320022420193. The next prime is 1320022420229. The reversal of 1320022420220 is 220242200231.

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 = 1320022420192 and 1320022420201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320022420229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64090244 + ... + 64110836.

It is an arithmetic number, because the mean of its divisors is an integer number (18246943008).

Almost surely, 2^{1320022420220} is an apocalyptic number.

1320022420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320022420220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751706528768).

1320022420220 is an abundant number, since it is smaller than the sum of its proper divisors (2183390637316).

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

1320022420220 is a wasteful number, since it uses less digits than its factorization.

1320022420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21820 (or 21818 counting only the distinct ones).

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

Adding to 1320022420220 its reverse (220242200231), we get a palindrome (1540264620451).

The spelling of 1320022420220 in words is "one trillion, three hundred twenty billion, twenty-two million, four hundred twenty thousand, two hundred twenty".