2121003202102 has 4 divisors (see below), whose sum is σ = 3181504803156. Its totient is φ = 1060501601050.

The previous prime is 2121003202093. The next prime is 2121003202141. The reversal of 2121003202102 is 2012023001212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530250800524 + ... + 530250800527.

It is an arithmetic number, because the mean of its divisors is an integer number (795376200789).

Almost surely, 2^{2121003202102} is an apocalyptic number.

2121003202102 is a deficient number, since it is larger than the sum of its proper divisors (1060501601054).

2121003202102 is a wasteful number, since it uses less digits than its factorization.

2121003202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060501601053.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2121003202102 its reverse (2012023001212), we get a palindrome (4133026203314).

The spelling of 2121003202102 in words is "two trillion, one hundred twenty-one billion, three million, two hundred two thousand, one hundred two".