2121201000102 has 16 divisors (see below), whose sum is σ = 4265840687472. Its totient is φ = 703160552160.

The previous prime is 2121201000091. The next prime is 2121201000133. The reversal of 2121201000102 is 2010001021212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976610793 + ... + 976612964.

It is an arithmetic number, because the mean of its divisors is an integer number (266615042967).

Almost surely, 2^{2121201000102} is an apocalyptic number.

2121201000102 is an abundant number, since it is smaller than the sum of its proper divisors (2144639687370).

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

2121201000102 is a wasteful number, since it uses less digits than its factorization.

2121201000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953223943.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2121201000102 its reverse (2010001021212), we get a palindrome (4131202021314).

The spelling of 2121201000102 in words is "two trillion, one hundred twenty-one billion, two hundred one million, one hundred two", and thus it is an aban number.