2002000022020 has 24 divisors (see below), whose sum is σ = 4225541171544. Its totient is φ = 796735032576.

The previous prime is 2002000021999. The next prime is 2002000022023. The reversal of 2002000022020 is 202200002002.

It can be written as a sum of positive squares in 4 ways, for example, as 144754377156 + 1857245644864 = 380466^2 + 1362808^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2002000021988 and 2002000022006.

It is not an unprimeable number, because it can be changed into a prime (2002000022023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254056977 + ... + 254064856.

It is an arithmetic number, because the mean of its divisors is an integer number (176064215481).

Almost surely, 2^{2002000022020} is an apocalyptic number.

2002000022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002000022020 is an abundant number, since it is smaller than the sum of its proper divisors (2223541149524).

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

2002000022020 is a wasteful number, since it uses less digits than its factorization.

2002000022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508122039 (or 508122037 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 2002000022020 its reverse (202200002002), we get a palindrome (2204200024022).

The spelling of 2002000022020 in words is "two trillion, two billion, twenty-two thousand, twenty".