20222040420020 has 48 divisors (see below), whose sum is σ = 42779157254400. Its totient is φ = 8029241458560.

The previous prime is 20222040420019. The next prime is 20222040420073. The reversal of 20222040420020 is 2002404022202.

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 = 20222040419974 and 20222040420001.

It is a congruent number.

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, 15609530 + ... + 16855310.

It is an arithmetic number, because the mean of its divisors is an integer number (891232442800).

Almost surely, 2^{20222040420020} is an apocalyptic number.

20222040420020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222040420020 is an abundant number, since it is smaller than the sum of its proper divisors (22557116834380).

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

20222040420020 is a wasteful number, since it uses less digits than its factorization.

20222040420020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251768 (or 1251766 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20222040420020 its reverse (2002404022202), we get a palindrome (22224444442222).

The spelling of 20222040420020 in words is "twenty trillion, two hundred twenty-two billion, forty million, four hundred twenty thousand, twenty".