2102020001002 has 8 divisors (see below), whose sum is σ = 3153093047712. Its totient is φ = 1050988985100.

The previous prime is 2102020000991. The next prime is 2102020001041. The reversal of 2102020001002 is 2001000202012.

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

It is a super-2 number, since 2×2102020001002² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2102020001002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10382374 + ... + 10582897.

It is an arithmetic number, because the mean of its divisors is an integer number (394136630964).

Almost surely, 2^{2102020001002} is an apocalyptic number.

2102020001002 is a deficient number, since it is larger than the sum of its proper divisors (1051073046710).

2102020001002 is a wasteful number, since it uses less digits than its factorization.

2102020001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21015404.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2102020001002 its reverse (2001000202012), we get a palindrome (4103020203014).

The spelling of 2102020001002 in words is "two trillion, one hundred two billion, twenty million, one thousand, two".