20102120002 has 16 divisors (see below), whose sum is σ = 30200306400. Its totient is φ = 10035365472.

The previous prime is 20102119997. The next prime is 20102120057. The reversal of 20102120002 is 20002120102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6091749 + ... + 6095047.

It is an arithmetic number, because the mean of its divisors is an integer number (1887519150).

Almost surely, 2^20102120002 is an apocalyptic number.

20102120002 is a deficient number, since it is larger than the sum of its proper divisors (10098186398).

20102120002 is a wasteful number, since it uses less digits than its factorization.

20102120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137.

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

Adding to 20102120002 its reverse (20002120102), we get a palindrome (40104240104).

The spelling of 20102120002 in words is "twenty billion, one hundred two million, one hundred twenty thousand, two".