20222440420 has 96 divisors (see below), whose sum is σ = 54539831808. Its totient is φ = 6121792512.

The previous prime is 20222440379. The next prime is 20222440501. The reversal of 20222440420 is 2404422202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20222440391 and 20222440400.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199689 + ... + 283408.

It is an arithmetic number, because the mean of its divisors is an integer number (568123248).

Almost surely, 2^20222440420 is an apocalyptic number.

20222440420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222440420 is an abundant number, since it is smaller than the sum of its proper divisors (34317391388).

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

20222440420 is a wasteful number, since it uses less digits than its factorization.

20222440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483149 (or 483147 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20222440420 its reverse (2404422202), we get a palindrome (22626862622).

It can be divided in two parts, 2022 and 2440420, that added together give a palindrome (2442442).

The spelling of 20222440420 in words is "twenty billion, two hundred twenty-two million, four hundred forty thousand, four hundred twenty".