1820002020002 has 8 divisors (see below), whose sum is σ = 2731689262800. Its totient is φ = 909438932404.

The previous prime is 1820002019993. The next prime is 1820002020041. The reversal of 1820002020002 is 2000202000281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1820002020002² (a number of 25 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 281034752 + ... + 281041227.

It is an arithmetic number, because the mean of its divisors is an integer number (341461157850).

Almost surely, 2^{1820002020002} is an apocalyptic number.

1820002020002 is a deficient number, since it is larger than the sum of its proper divisors (911687242798).

1820002020002 is a wasteful number, since it uses less digits than its factorization.

1820002020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562077600.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1820002020002 its reverse (2000202000281), we get a palindrome (3820204020283).

The spelling of 1820002020002 in words is "one trillion, eight hundred twenty billion, two million, twenty thousand, two".