102001020020002 has 8 divisors (see below), whose sum is σ = 153010582890012. Its totient is φ = 50997492390000.

The previous prime is 102001020019999. The next prime is 102001020020021. The reversal of 102001020020002 is 200020020100201.

It can be written as a sum of positive squares in 2 ways, for example, as 69418374669361 + 32582645350641 = 8331769^2 + 5708121^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508767749 + ... + 1508835352.

Almost surely, 2^{102001020020002} is an apocalyptic number.

102001020020002 is a deficient number, since it is larger than the sum of its proper divisors (51009562870010).

102001020020002 is a wasteful number, since it uses less digits than its factorization.

102001020020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017620004.

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

Adding to 102001020020002 its reverse (200020020100201), we get a palindrome (302021040120203).

The spelling of 102001020020002 in words is "one hundred two trillion, one billion, twenty million, twenty thousand, two".