2220021320 has 64 divisors (see below), whose sum is σ = 5541566400. Its totient is φ = 793588480.

The previous prime is 2220021319. The next prime is 2220021367. The reversal of 2220021320 is 231200222.

It is a super-2 number, since 2×2220021320² = 9856989322509084800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220021295 and 2220021304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16799 + ... + 68718.

It is an arithmetic number, because the mean of its divisors is an integer number (86586975).

Almost surely, 2^2220021320 is an apocalyptic number.

2220021320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220021320 is an abundant number, since it is smaller than the sum of its proper divisors (3321545080).

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

2220021320 is a wasteful number, since it uses less digits than its factorization.

2220021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85598 (or 85594 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2220021320 is about 47117.1022029157. The cubic root of 2220021320 is about 1304.5249260405.

Adding to 2220021320 its reverse (231200222), we get a palindrome (2451221542).

It can be divided in two parts, 222002 and 1320, that added together give a palindrome (223322).

The spelling of 2220021320 in words is "two billion, two hundred twenty million, twenty-one thousand, three hundred twenty".