2005420021022 has 48 divisors (see below), whose sum is σ = 3420891744480. Its totient is φ = 880013830080.

The previous prime is 2005420020977. The next prime is 2005420021027. The reversal of 2005420021022 is 2201200245002.

It is a junction number, because it is equal to n+sod(n) for n = 2005420020985 and 2005420021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005420021027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90991388 + ... + 91013424.

It is an arithmetic number, because the mean of its divisors is an integer number (71268578010).

Almost surely, 2^{2005420021022} is an apocalyptic number.

2005420021022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2005420021022 is a deficient number, since it is larger than the sum of its proper divisors (1415471723458).

2005420021022 is a wasteful number, since it uses less digits than its factorization.

2005420021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35057 (or 35046 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 2005420021022 its reverse (2201200245002), we get a palindrome (4206620266024).

The spelling of 2005420021022 in words is "two trillion, five billion, four hundred twenty million, twenty-one thousand, twenty-two".