20120220013320 has 192 divisors, whose sum is σ = 74735228880000. Its totient is φ = 4598723856384.

The previous prime is 20120220013297. The next prime is 20120220013409. The reversal of 20120220013320 is 2331002202102.

20120220013320 is a `hidden beast` number, since 2 + 0 + 120 + 220 + 0 + 1 + 3 + 320 = 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 = 20120220013293 and 20120220013302.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68925031 + ... + 69216329.

It is an arithmetic number, because the mean of its divisors is an integer number (389245983750).

Almost surely, 2^{20120220013320} is an apocalyptic number.

20120220013320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120220013320 is an abundant number, since it is smaller than the sum of its proper divisors (54615008866680).

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

20120220013320 is a wasteful number, since it uses less digits than its factorization.

20120220013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318732 (or 318725 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20120220013320 its reverse (2331002202102), we get a palindrome (22451222215422).

The spelling of 20120220013320 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, thirteen thousand, three hundred twenty".