2122230420 has 72 divisors (see below), whose sum is σ = 6447561120. Its totient is φ = 565037760.

The previous prime is 2122230419. The next prime is 2122230503. The reversal of 2122230420 is 240322212.

2122230420 is a `hidden beast` number, since 2 + 12 + 2 + 230 + 420 = 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 = 2122230393 and 2122230402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109675 + ... + 127565.

It is an arithmetic number, because the mean of its divisors is an integer number (89549460).

Almost surely, 2^2122230420 is an apocalyptic number.

2122230420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122230420 is an abundant number, since it is smaller than the sum of its proper divisors (4325330700).

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

2122230420 is a wasteful number, since it uses less digits than its factorization.

2122230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18565 (or 18560 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2122230420 is about 46067.6721790889. The cubic root of 2122230420 is about 1285.0820136706.

Adding to 2122230420 its reverse (240322212), we get a palindrome (2362552632).

The spelling of 2122230420 in words is "two billion, one hundred twenty-two million, two hundred thirty thousand, four hundred twenty".